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G = C23.9D18order 288 = 25·32

4th non-split extension by C23 of D18 acting via D18/C9=C22

metabelian, supersoluble, monomial, 2-hyperelementary

Aliases: D18.4D4, C23.9D18, C2.8(D4×D9), D18⋊C45C2, C4⋊Dic94C2, C22⋊C43D9, (C2×C12).3D6, C6.80(S3×D4), (C2×C4).26D18, C18.19(C2×D4), Dic9⋊C410C2, C18.8(C4○D4), (C2×C36).3C22, C3.(C23.9D6), (C22×C6).43D6, C6.78(C4○D12), C18.D44C2, C2.8(D42D9), (C2×C18).24C23, C91(C22.D4), C6.76(D42S3), C2.10(D365C2), (C2×Dic9).5C22, C22.42(C22×D9), (C22×C18).13C22, (C22×D9).17C22, (C2×C4×D9)⋊10C2, (C9×C22⋊C4)⋊5C2, (C2×C9⋊D4).3C2, (C3×C22⋊C4).7S3, (C2×C6).181(C22×S3), SmallGroup(288,93)

Series: Derived Chief Lower central Upper central

C1C2×C18 — C23.9D18
C1C3C9C18C2×C18C22×D9C2×C4×D9 — C23.9D18
C9C2×C18 — C23.9D18
C1C22C22⋊C4

Generators and relations for C23.9D18
 G = < a,b,c,d,e | a2=b2=c2=1, d18=e2=b, ab=ba, dad-1=ac=ca, eae-1=abc, bc=cb, bd=db, be=eb, cd=dc, ce=ec, ede-1=d17 >

Subgroups: 524 in 117 conjugacy classes, 40 normal (38 characteristic)
C1, C2, C2, C3, C4, C22, C22, S3, C6, C6, C2×C4, C2×C4, D4, C23, C23, C9, Dic3, C12, D6, C2×C6, C2×C6, C22⋊C4, C22⋊C4, C4⋊C4, C22×C4, C2×D4, D9, C18, C18, C4×S3, C2×Dic3, C3⋊D4, C2×C12, C22×S3, C22×C6, C22.D4, Dic9, C36, D18, D18, C2×C18, C2×C18, Dic3⋊C4, C4⋊Dic3, D6⋊C4, C6.D4, C3×C22⋊C4, S3×C2×C4, C2×C3⋊D4, C4×D9, C2×Dic9, C9⋊D4, C2×C36, C22×D9, C22×C18, C23.9D6, Dic9⋊C4, C4⋊Dic9, D18⋊C4, C18.D4, C9×C22⋊C4, C2×C4×D9, C2×C9⋊D4, C23.9D18
Quotients: C1, C2, C22, S3, D4, C23, D6, C2×D4, C4○D4, D9, C22×S3, C22.D4, D18, C4○D12, S3×D4, D42S3, C22×D9, C23.9D6, D365C2, D4×D9, D42D9, C23.9D18

Smallest permutation representation of C23.9D18
On 144 points
Generators in S144
(1 138)(2 102)(3 140)(4 104)(5 142)(6 106)(7 144)(8 108)(9 110)(10 74)(11 112)(12 76)(13 114)(14 78)(15 116)(16 80)(17 118)(18 82)(19 120)(20 84)(21 122)(22 86)(23 124)(24 88)(25 126)(26 90)(27 128)(28 92)(29 130)(30 94)(31 132)(32 96)(33 134)(34 98)(35 136)(36 100)(37 103)(38 141)(39 105)(40 143)(41 107)(42 109)(43 73)(44 111)(45 75)(46 113)(47 77)(48 115)(49 79)(50 117)(51 81)(52 119)(53 83)(54 121)(55 85)(56 123)(57 87)(58 125)(59 89)(60 127)(61 91)(62 129)(63 93)(64 131)(65 95)(66 133)(67 97)(68 135)(69 99)(70 137)(71 101)(72 139)
(1 19)(2 20)(3 21)(4 22)(5 23)(6 24)(7 25)(8 26)(9 27)(10 28)(11 29)(12 30)(13 31)(14 32)(15 33)(16 34)(17 35)(18 36)(37 55)(38 56)(39 57)(40 58)(41 59)(42 60)(43 61)(44 62)(45 63)(46 64)(47 65)(48 66)(49 67)(50 68)(51 69)(52 70)(53 71)(54 72)(73 91)(74 92)(75 93)(76 94)(77 95)(78 96)(79 97)(80 98)(81 99)(82 100)(83 101)(84 102)(85 103)(86 104)(87 105)(88 106)(89 107)(90 108)(109 127)(110 128)(111 129)(112 130)(113 131)(114 132)(115 133)(116 134)(117 135)(118 136)(119 137)(120 138)(121 139)(122 140)(123 141)(124 142)(125 143)(126 144)
(1 71)(2 72)(3 37)(4 38)(5 39)(6 40)(7 41)(8 42)(9 43)(10 44)(11 45)(12 46)(13 47)(14 48)(15 49)(16 50)(17 51)(18 52)(19 53)(20 54)(21 55)(22 56)(23 57)(24 58)(25 59)(26 60)(27 61)(28 62)(29 63)(30 64)(31 65)(32 66)(33 67)(34 68)(35 69)(36 70)(73 110)(74 111)(75 112)(76 113)(77 114)(78 115)(79 116)(80 117)(81 118)(82 119)(83 120)(84 121)(85 122)(86 123)(87 124)(88 125)(89 126)(90 127)(91 128)(92 129)(93 130)(94 131)(95 132)(96 133)(97 134)(98 135)(99 136)(100 137)(101 138)(102 139)(103 140)(104 141)(105 142)(106 143)(107 144)(108 109)
(1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36)(37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72)(73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108)(109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144)
(1 18 19 36)(2 35 20 17)(3 16 21 34)(4 33 22 15)(5 14 23 32)(6 31 24 13)(7 12 25 30)(8 29 26 11)(9 10 27 28)(37 50 55 68)(38 67 56 49)(39 48 57 66)(40 65 58 47)(41 46 59 64)(42 63 60 45)(43 44 61 62)(51 72 69 54)(52 53 70 71)(73 92 91 74)(75 90 93 108)(76 107 94 89)(77 88 95 106)(78 105 96 87)(79 86 97 104)(80 103 98 85)(81 84 99 102)(82 101 100 83)(109 112 127 130)(110 129 128 111)(113 144 131 126)(114 125 132 143)(115 142 133 124)(116 123 134 141)(117 140 135 122)(118 121 136 139)(119 138 137 120)

G:=sub<Sym(144)| (1,138)(2,102)(3,140)(4,104)(5,142)(6,106)(7,144)(8,108)(9,110)(10,74)(11,112)(12,76)(13,114)(14,78)(15,116)(16,80)(17,118)(18,82)(19,120)(20,84)(21,122)(22,86)(23,124)(24,88)(25,126)(26,90)(27,128)(28,92)(29,130)(30,94)(31,132)(32,96)(33,134)(34,98)(35,136)(36,100)(37,103)(38,141)(39,105)(40,143)(41,107)(42,109)(43,73)(44,111)(45,75)(46,113)(47,77)(48,115)(49,79)(50,117)(51,81)(52,119)(53,83)(54,121)(55,85)(56,123)(57,87)(58,125)(59,89)(60,127)(61,91)(62,129)(63,93)(64,131)(65,95)(66,133)(67,97)(68,135)(69,99)(70,137)(71,101)(72,139), (1,19)(2,20)(3,21)(4,22)(5,23)(6,24)(7,25)(8,26)(9,27)(10,28)(11,29)(12,30)(13,31)(14,32)(15,33)(16,34)(17,35)(18,36)(37,55)(38,56)(39,57)(40,58)(41,59)(42,60)(43,61)(44,62)(45,63)(46,64)(47,65)(48,66)(49,67)(50,68)(51,69)(52,70)(53,71)(54,72)(73,91)(74,92)(75,93)(76,94)(77,95)(78,96)(79,97)(80,98)(81,99)(82,100)(83,101)(84,102)(85,103)(86,104)(87,105)(88,106)(89,107)(90,108)(109,127)(110,128)(111,129)(112,130)(113,131)(114,132)(115,133)(116,134)(117,135)(118,136)(119,137)(120,138)(121,139)(122,140)(123,141)(124,142)(125,143)(126,144), (1,71)(2,72)(3,37)(4,38)(5,39)(6,40)(7,41)(8,42)(9,43)(10,44)(11,45)(12,46)(13,47)(14,48)(15,49)(16,50)(17,51)(18,52)(19,53)(20,54)(21,55)(22,56)(23,57)(24,58)(25,59)(26,60)(27,61)(28,62)(29,63)(30,64)(31,65)(32,66)(33,67)(34,68)(35,69)(36,70)(73,110)(74,111)(75,112)(76,113)(77,114)(78,115)(79,116)(80,117)(81,118)(82,119)(83,120)(84,121)(85,122)(86,123)(87,124)(88,125)(89,126)(90,127)(91,128)(92,129)(93,130)(94,131)(95,132)(96,133)(97,134)(98,135)(99,136)(100,137)(101,138)(102,139)(103,140)(104,141)(105,142)(106,143)(107,144)(108,109), (1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36)(37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72)(73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95,96,97,98,99,100,101,102,103,104,105,106,107,108)(109,110,111,112,113,114,115,116,117,118,119,120,121,122,123,124,125,126,127,128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,144), (1,18,19,36)(2,35,20,17)(3,16,21,34)(4,33,22,15)(5,14,23,32)(6,31,24,13)(7,12,25,30)(8,29,26,11)(9,10,27,28)(37,50,55,68)(38,67,56,49)(39,48,57,66)(40,65,58,47)(41,46,59,64)(42,63,60,45)(43,44,61,62)(51,72,69,54)(52,53,70,71)(73,92,91,74)(75,90,93,108)(76,107,94,89)(77,88,95,106)(78,105,96,87)(79,86,97,104)(80,103,98,85)(81,84,99,102)(82,101,100,83)(109,112,127,130)(110,129,128,111)(113,144,131,126)(114,125,132,143)(115,142,133,124)(116,123,134,141)(117,140,135,122)(118,121,136,139)(119,138,137,120)>;

G:=Group( (1,138)(2,102)(3,140)(4,104)(5,142)(6,106)(7,144)(8,108)(9,110)(10,74)(11,112)(12,76)(13,114)(14,78)(15,116)(16,80)(17,118)(18,82)(19,120)(20,84)(21,122)(22,86)(23,124)(24,88)(25,126)(26,90)(27,128)(28,92)(29,130)(30,94)(31,132)(32,96)(33,134)(34,98)(35,136)(36,100)(37,103)(38,141)(39,105)(40,143)(41,107)(42,109)(43,73)(44,111)(45,75)(46,113)(47,77)(48,115)(49,79)(50,117)(51,81)(52,119)(53,83)(54,121)(55,85)(56,123)(57,87)(58,125)(59,89)(60,127)(61,91)(62,129)(63,93)(64,131)(65,95)(66,133)(67,97)(68,135)(69,99)(70,137)(71,101)(72,139), (1,19)(2,20)(3,21)(4,22)(5,23)(6,24)(7,25)(8,26)(9,27)(10,28)(11,29)(12,30)(13,31)(14,32)(15,33)(16,34)(17,35)(18,36)(37,55)(38,56)(39,57)(40,58)(41,59)(42,60)(43,61)(44,62)(45,63)(46,64)(47,65)(48,66)(49,67)(50,68)(51,69)(52,70)(53,71)(54,72)(73,91)(74,92)(75,93)(76,94)(77,95)(78,96)(79,97)(80,98)(81,99)(82,100)(83,101)(84,102)(85,103)(86,104)(87,105)(88,106)(89,107)(90,108)(109,127)(110,128)(111,129)(112,130)(113,131)(114,132)(115,133)(116,134)(117,135)(118,136)(119,137)(120,138)(121,139)(122,140)(123,141)(124,142)(125,143)(126,144), (1,71)(2,72)(3,37)(4,38)(5,39)(6,40)(7,41)(8,42)(9,43)(10,44)(11,45)(12,46)(13,47)(14,48)(15,49)(16,50)(17,51)(18,52)(19,53)(20,54)(21,55)(22,56)(23,57)(24,58)(25,59)(26,60)(27,61)(28,62)(29,63)(30,64)(31,65)(32,66)(33,67)(34,68)(35,69)(36,70)(73,110)(74,111)(75,112)(76,113)(77,114)(78,115)(79,116)(80,117)(81,118)(82,119)(83,120)(84,121)(85,122)(86,123)(87,124)(88,125)(89,126)(90,127)(91,128)(92,129)(93,130)(94,131)(95,132)(96,133)(97,134)(98,135)(99,136)(100,137)(101,138)(102,139)(103,140)(104,141)(105,142)(106,143)(107,144)(108,109), (1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36)(37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72)(73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95,96,97,98,99,100,101,102,103,104,105,106,107,108)(109,110,111,112,113,114,115,116,117,118,119,120,121,122,123,124,125,126,127,128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,144), (1,18,19,36)(2,35,20,17)(3,16,21,34)(4,33,22,15)(5,14,23,32)(6,31,24,13)(7,12,25,30)(8,29,26,11)(9,10,27,28)(37,50,55,68)(38,67,56,49)(39,48,57,66)(40,65,58,47)(41,46,59,64)(42,63,60,45)(43,44,61,62)(51,72,69,54)(52,53,70,71)(73,92,91,74)(75,90,93,108)(76,107,94,89)(77,88,95,106)(78,105,96,87)(79,86,97,104)(80,103,98,85)(81,84,99,102)(82,101,100,83)(109,112,127,130)(110,129,128,111)(113,144,131,126)(114,125,132,143)(115,142,133,124)(116,123,134,141)(117,140,135,122)(118,121,136,139)(119,138,137,120) );

G=PermutationGroup([[(1,138),(2,102),(3,140),(4,104),(5,142),(6,106),(7,144),(8,108),(9,110),(10,74),(11,112),(12,76),(13,114),(14,78),(15,116),(16,80),(17,118),(18,82),(19,120),(20,84),(21,122),(22,86),(23,124),(24,88),(25,126),(26,90),(27,128),(28,92),(29,130),(30,94),(31,132),(32,96),(33,134),(34,98),(35,136),(36,100),(37,103),(38,141),(39,105),(40,143),(41,107),(42,109),(43,73),(44,111),(45,75),(46,113),(47,77),(48,115),(49,79),(50,117),(51,81),(52,119),(53,83),(54,121),(55,85),(56,123),(57,87),(58,125),(59,89),(60,127),(61,91),(62,129),(63,93),(64,131),(65,95),(66,133),(67,97),(68,135),(69,99),(70,137),(71,101),(72,139)], [(1,19),(2,20),(3,21),(4,22),(5,23),(6,24),(7,25),(8,26),(9,27),(10,28),(11,29),(12,30),(13,31),(14,32),(15,33),(16,34),(17,35),(18,36),(37,55),(38,56),(39,57),(40,58),(41,59),(42,60),(43,61),(44,62),(45,63),(46,64),(47,65),(48,66),(49,67),(50,68),(51,69),(52,70),(53,71),(54,72),(73,91),(74,92),(75,93),(76,94),(77,95),(78,96),(79,97),(80,98),(81,99),(82,100),(83,101),(84,102),(85,103),(86,104),(87,105),(88,106),(89,107),(90,108),(109,127),(110,128),(111,129),(112,130),(113,131),(114,132),(115,133),(116,134),(117,135),(118,136),(119,137),(120,138),(121,139),(122,140),(123,141),(124,142),(125,143),(126,144)], [(1,71),(2,72),(3,37),(4,38),(5,39),(6,40),(7,41),(8,42),(9,43),(10,44),(11,45),(12,46),(13,47),(14,48),(15,49),(16,50),(17,51),(18,52),(19,53),(20,54),(21,55),(22,56),(23,57),(24,58),(25,59),(26,60),(27,61),(28,62),(29,63),(30,64),(31,65),(32,66),(33,67),(34,68),(35,69),(36,70),(73,110),(74,111),(75,112),(76,113),(77,114),(78,115),(79,116),(80,117),(81,118),(82,119),(83,120),(84,121),(85,122),(86,123),(87,124),(88,125),(89,126),(90,127),(91,128),(92,129),(93,130),(94,131),(95,132),(96,133),(97,134),(98,135),(99,136),(100,137),(101,138),(102,139),(103,140),(104,141),(105,142),(106,143),(107,144),(108,109)], [(1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36),(37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72),(73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95,96,97,98,99,100,101,102,103,104,105,106,107,108),(109,110,111,112,113,114,115,116,117,118,119,120,121,122,123,124,125,126,127,128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,144)], [(1,18,19,36),(2,35,20,17),(3,16,21,34),(4,33,22,15),(5,14,23,32),(6,31,24,13),(7,12,25,30),(8,29,26,11),(9,10,27,28),(37,50,55,68),(38,67,56,49),(39,48,57,66),(40,65,58,47),(41,46,59,64),(42,63,60,45),(43,44,61,62),(51,72,69,54),(52,53,70,71),(73,92,91,74),(75,90,93,108),(76,107,94,89),(77,88,95,106),(78,105,96,87),(79,86,97,104),(80,103,98,85),(81,84,99,102),(82,101,100,83),(109,112,127,130),(110,129,128,111),(113,144,131,126),(114,125,132,143),(115,142,133,124),(116,123,134,141),(117,140,135,122),(118,121,136,139),(119,138,137,120)]])

54 conjugacy classes

class 1 2A2B2C2D2E2F 3 4A4B4C4D4E4F4G6A6B6C6D6E9A9B9C12A12B12C12D18A···18I18J···18O36A···36L
order122222234444444666669991212121218···1818···1836···36
size1111418182224181836362224422244442···24···44···4

54 irreducible representations

dim1111111122222222224444
type++++++++++++++++-+-
imageC1C2C2C2C2C2C2C2S3D4D6D6C4○D4D9D18D18C4○D12D365C2S3×D4D42S3D4×D9D42D9
kernelC23.9D18Dic9⋊C4C4⋊Dic9D18⋊C4C18.D4C9×C22⋊C4C2×C4×D9C2×C9⋊D4C3×C22⋊C4D18C2×C12C22×C6C18C22⋊C4C2×C4C23C6C2C6C6C2C2
# reps11111111122143634121133

Matrix representation of C23.9D18 in GL6(𝔽37)

100000
010000
000100
001000
000001
000010
,
100000
010000
0036000
0003600
0000360
0000036
,
100000
010000
001000
000100
0000360
0000036
,
11200000
17310000
0031000
0003100
000060
0000031
,
17310000
11200000
0031000
000600
000060
000006

G:=sub<GL(6,GF(37))| [1,0,0,0,0,0,0,1,0,0,0,0,0,0,0,1,0,0,0,0,1,0,0,0,0,0,0,0,0,1,0,0,0,0,1,0],[1,0,0,0,0,0,0,1,0,0,0,0,0,0,36,0,0,0,0,0,0,36,0,0,0,0,0,0,36,0,0,0,0,0,0,36],[1,0,0,0,0,0,0,1,0,0,0,0,0,0,1,0,0,0,0,0,0,1,0,0,0,0,0,0,36,0,0,0,0,0,0,36],[11,17,0,0,0,0,20,31,0,0,0,0,0,0,31,0,0,0,0,0,0,31,0,0,0,0,0,0,6,0,0,0,0,0,0,31],[17,11,0,0,0,0,31,20,0,0,0,0,0,0,31,0,0,0,0,0,0,6,0,0,0,0,0,0,6,0,0,0,0,0,0,6] >;

C23.9D18 in GAP, Magma, Sage, TeX

C_2^3._9D_{18}
% in TeX

G:=Group("C2^3.9D18");
// GroupNames label

G:=SmallGroup(288,93);
// by ID

G=gap.SmallGroup(288,93);
# by ID

G:=PCGroup([7,-2,-2,-2,-2,-2,-3,-3,64,254,219,6725,292,9414]);
// Polycyclic

G:=Group<a,b,c,d,e|a^2=b^2=c^2=1,d^18=e^2=b,a*b=b*a,d*a*d^-1=a*c=c*a,e*a*e^-1=a*b*c,b*c=c*b,b*d=d*b,b*e=e*b,c*d=d*c,c*e=e*c,e*d*e^-1=d^17>;
// generators/relations

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