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G = C56.42D4order 448 = 26·7

42nd non-split extension by C56 of D4 acting via D4/C2=C22

metabelian, supersoluble, monomial, 2-hyperelementary

Aliases: C56.42D4, C8.24D28, D28.22D4, Dic14.22D4, M4(2).11D14, C4.58(C2×D28), (C2×C8).72D14, C8.C47D7, C4.137(D4×D7), C8⋊D14.2C2, C28.138(C2×D4), C73(D4.3D4), D28.2C49C2, C8.D1410C2, C28.46D44C2, C28.47D44C2, C14.51(C4⋊D4), C2.24(C281D4), (C2×C56).155C22, (C2×C28).314C23, C4○D28.41C22, (C2×D28).89C22, C22.8(Q82D7), (C7×M4(2)).8C22, C4.Dic7.39C22, (C2×Dic14).95C22, (C7×C8.C4)⋊8C2, (C2×C56⋊C2)⋊26C2, (C2×C14).5(C4○D4), (C2×C4).115(C22×D7), SmallGroup(448,432)

Series: Derived Chief Lower central Upper central

C1C2×C28 — C56.42D4
C1C7C14C28C2×C28C4○D28D28.2C4 — C56.42D4
C7C14C2×C28 — C56.42D4
C1C2C2×C4C8.C4

Generators and relations for C56.42D4
 G = < a,b,c | a56=1, b4=c2=a28, bab-1=a43, cac-1=a27, cbc-1=b3 >

Subgroups: 668 in 104 conjugacy classes, 37 normal (all characteristic)
C1, C2, C2 [×3], C4 [×2], C4 [×2], C22, C22 [×3], C7, C8 [×2], C8 [×3], C2×C4, C2×C4 [×2], D4 [×4], Q8 [×3], C23, D7 [×2], C14, C14, C2×C8, C2×C8, M4(2) [×2], M4(2) [×2], D8, SD16 [×4], Q16, C2×D4, C2×Q8, C4○D4, Dic7 [×2], C28 [×2], D14 [×3], C2×C14, C4.D4, C4.10D4, C8.C4, C8○D4, C2×SD16, C8⋊C22, C8.C22, C7⋊C8, C56 [×2], C56 [×2], Dic14, Dic14 [×2], C4×D7, D28, D28 [×2], C2×Dic7, C7⋊D4, C2×C28, C22×D7, D4.3D4, C8×D7, C8⋊D7, C56⋊C2 [×4], D56, Dic28, C4.Dic7, C2×C56, C7×M4(2) [×2], C2×Dic14, C2×D28, C4○D28, C28.46D4, C28.47D4, C7×C8.C4, D28.2C4, C2×C56⋊C2, C8⋊D14, C8.D14, C56.42D4
Quotients: C1, C2 [×7], C22 [×7], D4 [×4], C23, D7, C2×D4 [×2], C4○D4, D14 [×3], C4⋊D4, D28 [×2], C22×D7, D4.3D4, C2×D28, D4×D7, Q82D7, C281D4, C56.42D4

Smallest permutation representation of C56.42D4
On 112 points
Generators in S112
(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)
(1 86 15 72 29 58 43 100)(2 73 16 59 30 101 44 87)(3 60 17 102 31 88 45 74)(4 103 18 89 32 75 46 61)(5 90 19 76 33 62 47 104)(6 77 20 63 34 105 48 91)(7 64 21 106 35 92 49 78)(8 107 22 93 36 79 50 65)(9 94 23 80 37 66 51 108)(10 81 24 67 38 109 52 95)(11 68 25 110 39 96 53 82)(12 111 26 97 40 83 54 69)(13 98 27 84 41 70 55 112)(14 85 28 71 42 57 56 99)
(1 22 29 50)(2 49 30 21)(3 20 31 48)(4 47 32 19)(5 18 33 46)(6 45 34 17)(7 16 35 44)(8 43 36 15)(9 14 37 42)(10 41 38 13)(11 12 39 40)(23 56 51 28)(24 27 52 55)(25 54 53 26)(57 80 85 108)(58 107 86 79)(59 78 87 106)(60 105 88 77)(61 76 89 104)(62 103 90 75)(63 74 91 102)(64 101 92 73)(65 72 93 100)(66 99 94 71)(67 70 95 98)(68 97 96 69)(81 112 109 84)(82 83 110 111)

G:=sub<Sym(112)| (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), (1,86,15,72,29,58,43,100)(2,73,16,59,30,101,44,87)(3,60,17,102,31,88,45,74)(4,103,18,89,32,75,46,61)(5,90,19,76,33,62,47,104)(6,77,20,63,34,105,48,91)(7,64,21,106,35,92,49,78)(8,107,22,93,36,79,50,65)(9,94,23,80,37,66,51,108)(10,81,24,67,38,109,52,95)(11,68,25,110,39,96,53,82)(12,111,26,97,40,83,54,69)(13,98,27,84,41,70,55,112)(14,85,28,71,42,57,56,99), (1,22,29,50)(2,49,30,21)(3,20,31,48)(4,47,32,19)(5,18,33,46)(6,45,34,17)(7,16,35,44)(8,43,36,15)(9,14,37,42)(10,41,38,13)(11,12,39,40)(23,56,51,28)(24,27,52,55)(25,54,53,26)(57,80,85,108)(58,107,86,79)(59,78,87,106)(60,105,88,77)(61,76,89,104)(62,103,90,75)(63,74,91,102)(64,101,92,73)(65,72,93,100)(66,99,94,71)(67,70,95,98)(68,97,96,69)(81,112,109,84)(82,83,110,111)>;

G:=Group( (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), (1,86,15,72,29,58,43,100)(2,73,16,59,30,101,44,87)(3,60,17,102,31,88,45,74)(4,103,18,89,32,75,46,61)(5,90,19,76,33,62,47,104)(6,77,20,63,34,105,48,91)(7,64,21,106,35,92,49,78)(8,107,22,93,36,79,50,65)(9,94,23,80,37,66,51,108)(10,81,24,67,38,109,52,95)(11,68,25,110,39,96,53,82)(12,111,26,97,40,83,54,69)(13,98,27,84,41,70,55,112)(14,85,28,71,42,57,56,99), (1,22,29,50)(2,49,30,21)(3,20,31,48)(4,47,32,19)(5,18,33,46)(6,45,34,17)(7,16,35,44)(8,43,36,15)(9,14,37,42)(10,41,38,13)(11,12,39,40)(23,56,51,28)(24,27,52,55)(25,54,53,26)(57,80,85,108)(58,107,86,79)(59,78,87,106)(60,105,88,77)(61,76,89,104)(62,103,90,75)(63,74,91,102)(64,101,92,73)(65,72,93,100)(66,99,94,71)(67,70,95,98)(68,97,96,69)(81,112,109,84)(82,83,110,111) );

G=PermutationGroup([(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)], [(1,86,15,72,29,58,43,100),(2,73,16,59,30,101,44,87),(3,60,17,102,31,88,45,74),(4,103,18,89,32,75,46,61),(5,90,19,76,33,62,47,104),(6,77,20,63,34,105,48,91),(7,64,21,106,35,92,49,78),(8,107,22,93,36,79,50,65),(9,94,23,80,37,66,51,108),(10,81,24,67,38,109,52,95),(11,68,25,110,39,96,53,82),(12,111,26,97,40,83,54,69),(13,98,27,84,41,70,55,112),(14,85,28,71,42,57,56,99)], [(1,22,29,50),(2,49,30,21),(3,20,31,48),(4,47,32,19),(5,18,33,46),(6,45,34,17),(7,16,35,44),(8,43,36,15),(9,14,37,42),(10,41,38,13),(11,12,39,40),(23,56,51,28),(24,27,52,55),(25,54,53,26),(57,80,85,108),(58,107,86,79),(59,78,87,106),(60,105,88,77),(61,76,89,104),(62,103,90,75),(63,74,91,102),(64,101,92,73),(65,72,93,100),(66,99,94,71),(67,70,95,98),(68,97,96,69),(81,112,109,84),(82,83,110,111)])

58 conjugacy classes

class 1 2A2B2C2D4A4B4C4D7A7B7C8A8B8C8D8E8F8G14A14B14C14D14E14F28A···28F28G28H28I56A···56L56M···56X
order122224444777888888814141414141428···2828282856···5656···56
size11228562228562222248828282224442···24444···48···8

58 irreducible representations

dim11111111222222224444
type+++++++++++++++++
imageC1C2C2C2C2C2C2C2D4D4D4D7C4○D4D14D14D28D4.3D4D4×D7Q82D7C56.42D4
kernelC56.42D4C28.46D4C28.47D4C7×C8.C4D28.2C4C2×C56⋊C2C8⋊D14C8.D14C56Dic14D28C8.C4C2×C14C2×C8M4(2)C8C7C4C22C1
# reps1111111121132361223312

Matrix representation of C56.42D4 in GL4(𝔽113) generated by

1710500
953500
18910495
1111041811
,
001121
89111124
82811120
73731120
,
35800
1017800
112104189
19910295
G:=sub<GL(4,GF(113))| [17,95,18,111,105,35,9,104,0,0,104,18,0,0,95,11],[0,89,82,73,0,1,81,73,112,111,112,112,1,24,0,0],[35,101,112,19,8,78,104,9,0,0,18,102,0,0,9,95] >;

C56.42D4 in GAP, Magma, Sage, TeX

C_{56}._{42}D_4
% in TeX

G:=Group("C56.42D4");
// GroupNames label

G:=SmallGroup(448,432);
// by ID

G=gap.SmallGroup(448,432);
# by ID

G:=PCGroup([7,-2,-2,-2,-2,-2,-2,-7,120,254,555,58,1123,136,438,102,18822]);
// Polycyclic

G:=Group<a,b,c|a^56=1,b^4=c^2=a^28,b*a*b^-1=a^43,c*a*c^-1=a^27,c*b*c^-1=b^3>;
// generators/relations

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