direct product, metabelian, nilpotent (class 3), monomial, 2-elementary
Aliases: C7xD4oD8, C56.52C23, C28.85C24, 2+ 1+4:3C14, C8oD4:3C14, C4oD8:4C14, D8:7(C2xC14), (C2xD8):12C14, (C14xD8):26C2, C8:C22:4C14, Q16:7(C2xC14), (C7xD4).45D4, D4.11(C7xD4), C4.45(D4xC14), (C7xQ8).45D4, Q8.11(C7xD4), (C2xC56):31C22, SD16:4(C2xC14), C28.406(C2xD4), (C7xD8):21C22, C4.8(C23xC14), C22.7(D4xC14), (D4xC14):40C22, M4(2):6(C2xC14), C8.10(C22xC14), (C7xQ16):21C22, D4.5(C22xC14), (C7xD4).38C23, Q8.5(C22xC14), (C7xQ8).39C23, (C2xC28).687C23, (C7xSD16):20C22, C14.206(C22xD4), (C7x2+ 1+4):9C2, (C7xM4(2)):32C22, (C2xC8):4(C2xC14), C2.30(D4xC2xC14), C4oD4:1(C2xC14), (C7xC8oD4):12C2, (C7xC4oD8):11C2, (C2xD4):7(C2xC14), (C7xC8:C22):11C2, (C2xC14).184(C2xD4), (C7xC4oD4):14C22, (C2xC4).48(C22xC14), SmallGroup(448,1359)
Series: Derived ►Chief ►Lower central ►Upper central
Generators and relations for C7xD4oD8
G = < a,b,c,d,e | a7=b4=c2=e2=1, d4=b2, ab=ba, ac=ca, ad=da, ae=ea, cbc=b-1, bd=db, be=eb, cd=dc, ce=ec, ede=b2d3 >
Subgroups: 474 in 268 conjugacy classes, 158 normal (18 characteristic)
C1, C2, C2, C4, C4, C4, C22, C22, C7, C8, C8, C2xC4, C2xC4, D4, D4, Q8, Q8, C23, C14, C14, C2xC8, M4(2), D8, SD16, Q16, C2xD4, C2xD4, C4oD4, C4oD4, C4oD4, C28, C28, C28, C2xC14, C2xC14, C8oD4, C2xD8, C4oD8, C8:C22, 2+ 1+4, C56, C56, C2xC28, C2xC28, C7xD4, C7xD4, C7xQ8, C7xQ8, C22xC14, D4oD8, C2xC56, C7xM4(2), C7xD8, C7xSD16, C7xQ16, D4xC14, D4xC14, C7xC4oD4, C7xC4oD4, C7xC4oD4, C7xC8oD4, C14xD8, C7xC4oD8, C7xC8:C22, C7x2+ 1+4, C7xD4oD8
Quotients: C1, C2, C22, C7, D4, C23, C14, C2xD4, C24, C2xC14, C22xD4, C7xD4, C22xC14, D4oD8, D4xC14, C23xC14, D4xC2xC14, C7xD4oD8
►On 112 points
Generators in S112
(1 82 99 109 36 31 61)(2 83 100 110 37 32 62)(3 84 101 111 38 25 63)(4 85 102 112 39 26 64)(5 86 103 105 40 27 57)(6 87 104 106 33 28 58)(7 88 97 107 34 29 59)(8 81 98 108 35 30 60)(9 46 76 17 54 95 68)(10 47 77 18 55 96 69)(11 48 78 19 56 89 70)(12 41 79 20 49 90 71)(13 42 80 21 50 91 72)(14 43 73 22 51 92 65)(15 44 74 23 52 93 66)(16 45 75 24 53 94 67)
(1 3 5 7)(2 4 6 8)(9 15 13 11)(10 16 14 12)(17 23 21 19)(18 24 22 20)(25 27 29 31)(26 28 30 32)(33 35 37 39)(34 36 38 40)(41 47 45 43)(42 48 46 44)(49 55 53 51)(50 56 54 52)(57 59 61 63)(58 60 62 64)(65 71 69 67)(66 72 70 68)(73 79 77 75)(74 80 78 76)(81 83 85 87)(82 84 86 88)(89 95 93 91)(90 96 94 92)(97 99 101 103)(98 100 102 104)(105 107 109 111)(106 108 110 112)
(1 46)(2 47)(3 48)(4 41)(5 42)(6 43)(7 44)(8 45)(9 61)(10 62)(11 63)(12 64)(13 57)(14 58)(15 59)(16 60)(17 99)(18 100)(19 101)(20 102)(21 103)(22 104)(23 97)(24 98)(25 70)(26 71)(27 72)(28 65)(29 66)(30 67)(31 68)(32 69)(33 92)(34 93)(35 94)(36 95)(37 96)(38 89)(39 90)(40 91)(49 112)(50 105)(51 106)(52 107)(53 108)(54 109)(55 110)(56 111)(73 87)(74 88)(75 81)(76 82)(77 83)(78 84)(79 85)(80 86)
(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 44)(2 43)(3 42)(4 41)(5 48)(6 47)(7 46)(8 45)(9 59)(10 58)(11 57)(12 64)(13 63)(14 62)(15 61)(16 60)(17 97)(18 104)(19 103)(20 102)(21 101)(22 100)(23 99)(24 98)(25 72)(26 71)(27 70)(28 69)(29 68)(30 67)(31 66)(32 65)(33 96)(34 95)(35 94)(36 93)(37 92)(38 91)(39 90)(40 89)(49 112)(50 111)(51 110)(52 109)(53 108)(54 107)(55 106)(56 105)(73 83)(74 82)(75 81)(76 88)(77 87)(78 86)(79 85)(80 84)
G:=sub<Sym(112)| (1,82,99,109,36,31,61)(2,83,100,110,37,32,62)(3,84,101,111,38,25,63)(4,85,102,112,39,26,64)(5,86,103,105,40,27,57)(6,87,104,106,33,28,58)(7,88,97,107,34,29,59)(8,81,98,108,35,30,60)(9,46,76,17,54,95,68)(10,47,77,18,55,96,69)(11,48,78,19,56,89,70)(12,41,79,20,49,90,71)(13,42,80,21,50,91,72)(14,43,73,22,51,92,65)(15,44,74,23,52,93,66)(16,45,75,24,53,94,67), (1,3,5,7)(2,4,6,8)(9,15,13,11)(10,16,14,12)(17,23,21,19)(18,24,22,20)(25,27,29,31)(26,28,30,32)(33,35,37,39)(34,36,38,40)(41,47,45,43)(42,48,46,44)(49,55,53,51)(50,56,54,52)(57,59,61,63)(58,60,62,64)(65,71,69,67)(66,72,70,68)(73,79,77,75)(74,80,78,76)(81,83,85,87)(82,84,86,88)(89,95,93,91)(90,96,94,92)(97,99,101,103)(98,100,102,104)(105,107,109,111)(106,108,110,112), (1,46)(2,47)(3,48)(4,41)(5,42)(6,43)(7,44)(8,45)(9,61)(10,62)(11,63)(12,64)(13,57)(14,58)(15,59)(16,60)(17,99)(18,100)(19,101)(20,102)(21,103)(22,104)(23,97)(24,98)(25,70)(26,71)(27,72)(28,65)(29,66)(30,67)(31,68)(32,69)(33,92)(34,93)(35,94)(36,95)(37,96)(38,89)(39,90)(40,91)(49,112)(50,105)(51,106)(52,107)(53,108)(54,109)(55,110)(56,111)(73,87)(74,88)(75,81)(76,82)(77,83)(78,84)(79,85)(80,86), (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), (1,44)(2,43)(3,42)(4,41)(5,48)(6,47)(7,46)(8,45)(9,59)(10,58)(11,57)(12,64)(13,63)(14,62)(15,61)(16,60)(17,97)(18,104)(19,103)(20,102)(21,101)(22,100)(23,99)(24,98)(25,72)(26,71)(27,70)(28,69)(29,68)(30,67)(31,66)(32,65)(33,96)(34,95)(35,94)(36,93)(37,92)(38,91)(39,90)(40,89)(49,112)(50,111)(51,110)(52,109)(53,108)(54,107)(55,106)(56,105)(73,83)(74,82)(75,81)(76,88)(77,87)(78,86)(79,85)(80,84)>;
G:=Group( (1,82,99,109,36,31,61)(2,83,100,110,37,32,62)(3,84,101,111,38,25,63)(4,85,102,112,39,26,64)(5,86,103,105,40,27,57)(6,87,104,106,33,28,58)(7,88,97,107,34,29,59)(8,81,98,108,35,30,60)(9,46,76,17,54,95,68)(10,47,77,18,55,96,69)(11,48,78,19,56,89,70)(12,41,79,20,49,90,71)(13,42,80,21,50,91,72)(14,43,73,22,51,92,65)(15,44,74,23,52,93,66)(16,45,75,24,53,94,67), (1,3,5,7)(2,4,6,8)(9,15,13,11)(10,16,14,12)(17,23,21,19)(18,24,22,20)(25,27,29,31)(26,28,30,32)(33,35,37,39)(34,36,38,40)(41,47,45,43)(42,48,46,44)(49,55,53,51)(50,56,54,52)(57,59,61,63)(58,60,62,64)(65,71,69,67)(66,72,70,68)(73,79,77,75)(74,80,78,76)(81,83,85,87)(82,84,86,88)(89,95,93,91)(90,96,94,92)(97,99,101,103)(98,100,102,104)(105,107,109,111)(106,108,110,112), (1,46)(2,47)(3,48)(4,41)(5,42)(6,43)(7,44)(8,45)(9,61)(10,62)(11,63)(12,64)(13,57)(14,58)(15,59)(16,60)(17,99)(18,100)(19,101)(20,102)(21,103)(22,104)(23,97)(24,98)(25,70)(26,71)(27,72)(28,65)(29,66)(30,67)(31,68)(32,69)(33,92)(34,93)(35,94)(36,95)(37,96)(38,89)(39,90)(40,91)(49,112)(50,105)(51,106)(52,107)(53,108)(54,109)(55,110)(56,111)(73,87)(74,88)(75,81)(76,82)(77,83)(78,84)(79,85)(80,86), (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), (1,44)(2,43)(3,42)(4,41)(5,48)(6,47)(7,46)(8,45)(9,59)(10,58)(11,57)(12,64)(13,63)(14,62)(15,61)(16,60)(17,97)(18,104)(19,103)(20,102)(21,101)(22,100)(23,99)(24,98)(25,72)(26,71)(27,70)(28,69)(29,68)(30,67)(31,66)(32,65)(33,96)(34,95)(35,94)(36,93)(37,92)(38,91)(39,90)(40,89)(49,112)(50,111)(51,110)(52,109)(53,108)(54,107)(55,106)(56,105)(73,83)(74,82)(75,81)(76,88)(77,87)(78,86)(79,85)(80,84) );
G=PermutationGroup([[(1,82,99,109,36,31,61),(2,83,100,110,37,32,62),(3,84,101,111,38,25,63),(4,85,102,112,39,26,64),(5,86,103,105,40,27,57),(6,87,104,106,33,28,58),(7,88,97,107,34,29,59),(8,81,98,108,35,30,60),(9,46,76,17,54,95,68),(10,47,77,18,55,96,69),(11,48,78,19,56,89,70),(12,41,79,20,49,90,71),(13,42,80,21,50,91,72),(14,43,73,22,51,92,65),(15,44,74,23,52,93,66),(16,45,75,24,53,94,67)], [(1,3,5,7),(2,4,6,8),(9,15,13,11),(10,16,14,12),(17,23,21,19),(18,24,22,20),(25,27,29,31),(26,28,30,32),(33,35,37,39),(34,36,38,40),(41,47,45,43),(42,48,46,44),(49,55,53,51),(50,56,54,52),(57,59,61,63),(58,60,62,64),(65,71,69,67),(66,72,70,68),(73,79,77,75),(74,80,78,76),(81,83,85,87),(82,84,86,88),(89,95,93,91),(90,96,94,92),(97,99,101,103),(98,100,102,104),(105,107,109,111),(106,108,110,112)], [(1,46),(2,47),(3,48),(4,41),(5,42),(6,43),(7,44),(8,45),(9,61),(10,62),(11,63),(12,64),(13,57),(14,58),(15,59),(16,60),(17,99),(18,100),(19,101),(20,102),(21,103),(22,104),(23,97),(24,98),(25,70),(26,71),(27,72),(28,65),(29,66),(30,67),(31,68),(32,69),(33,92),(34,93),(35,94),(36,95),(37,96),(38,89),(39,90),(40,91),(49,112),(50,105),(51,106),(52,107),(53,108),(54,109),(55,110),(56,111),(73,87),(74,88),(75,81),(76,82),(77,83),(78,84),(79,85),(80,86)], [(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)], [(1,44),(2,43),(3,42),(4,41),(5,48),(6,47),(7,46),(8,45),(9,59),(10,58),(11,57),(12,64),(13,63),(14,62),(15,61),(16,60),(17,97),(18,104),(19,103),(20,102),(21,101),(22,100),(23,99),(24,98),(25,72),(26,71),(27,70),(28,69),(29,68),(30,67),(31,66),(32,65),(33,96),(34,95),(35,94),(36,93),(37,92),(38,91),(39,90),(40,89),(49,112),(50,111),(51,110),(52,109),(53,108),(54,107),(55,106),(56,105),(73,83),(74,82),(75,81),(76,88),(77,87),(78,86),(79,85),(80,84)]])
154 conjugacy classes
| class | 1 | 2A | 2B | 2C | 2D | 2E | ··· | 2J | 4A | 4B | 4C | 4D | 4E | 4F | 7A | ··· | 7F | 8A | 8B | 8C | 8D | 8E | 14A | ··· | 14F | 14G | ··· | 14X | 14Y | ··· | 14BH | 28A | ··· | 28X | 28Y | ··· | 28AJ | 56A | ··· | 56L | 56M | ··· | 56AD |
| order | 1 | 2 | 2 | 2 | 2 | 2 | ··· | 2 | 4 | 4 | 4 | 4 | 4 | 4 | 7 | ··· | 7 | 8 | 8 | 8 | 8 | 8 | 14 | ··· | 14 | 14 | ··· | 14 | 14 | ··· | 14 | 28 | ··· | 28 | 28 | ··· | 28 | 56 | ··· | 56 | 56 | ··· | 56 |
| size | 1 | 1 | 2 | 2 | 2 | 4 | ··· | 4 | 2 | 2 | 2 | 2 | 4 | 4 | 1 | ··· | 1 | 2 | 2 | 4 | 4 | 4 | 1 | ··· | 1 | 2 | ··· | 2 | 4 | ··· | 4 | 2 | ··· | 2 | 4 | ··· | 4 | 2 | ··· | 2 | 4 | ··· | 4 |
154 irreducible representations
| dim | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 4 | 4 |
| type | + | + | + | + | + | + | + | + | + | |||||||||
| image | C1 | C2 | C2 | C2 | C2 | C2 | C7 | C14 | C14 | C14 | C14 | C14 | D4 | D4 | C7xD4 | C7xD4 | D4oD8 | C7xD4oD8 |
| kernel | C7xD4oD8 | C7xC8oD4 | C14xD8 | C7xC4oD8 | C7xC8:C22 | C7x2+ 1+4 | D4oD8 | C8oD4 | C2xD8 | C4oD8 | C8:C22 | 2+ 1+4 | C7xD4 | C7xQ8 | D4 | Q8 | C7 | C1 |
| # reps | 1 | 1 | 3 | 3 | 6 | 2 | 6 | 6 | 18 | 18 | 36 | 12 | 3 | 1 | 18 | 6 | 2 | 12 |
Matrix representation of C7xD4oD8 ►in GL4(F113) generated by
| 16 | 0 | 0 | 0 |
| 0 | 16 | 0 | 0 |
| 0 | 0 | 16 | 0 |
| 0 | 0 | 0 | 16 |
| 0 | 112 | 0 | 0 |
| 1 | 0 | 0 | 0 |
| 0 | 0 | 0 | 1 |
| 0 | 0 | 112 | 0 |
| 0 | 0 | 0 | 1 |
| 0 | 0 | 112 | 0 |
| 0 | 112 | 0 | 0 |
| 1 | 0 | 0 | 0 |
| 82 | 31 | 0 | 0 |
| 82 | 82 | 0 | 0 |
| 0 | 0 | 82 | 31 |
| 0 | 0 | 82 | 82 |
| 0 | 0 | 1 | 0 |
| 0 | 0 | 0 | 112 |
| 1 | 0 | 0 | 0 |
| 0 | 112 | 0 | 0 |
G:=sub<GL(4,GF(113))| [16,0,0,0,0,16,0,0,0,0,16,0,0,0,0,16],[0,1,0,0,112,0,0,0,0,0,0,112,0,0,1,0],[0,0,0,1,0,0,112,0,0,112,0,0,1,0,0,0],[82,82,0,0,31,82,0,0,0,0,82,82,0,0,31,82],[0,0,1,0,0,0,0,112,1,0,0,0,0,112,0,0] >;
C7xD4oD8 in GAP, Magma, Sage, TeX
C_7\times D_4\circ D_8
% in TeX
G:=Group("C7xD4oD8"); // GroupNames label
G:=SmallGroup(448,1359);
// by ID
G=gap.SmallGroup(448,1359);
# by ID
G:=PCGroup([7,-2,-2,-2,-2,-7,-2,-2,1597,1641,14117,7068,124]);
// Polycyclic
G:=Group<a,b,c,d,e|a^7=b^4=c^2=e^2=1,d^4=b^2,a*b=b*a,a*c=c*a,a*d=d*a,a*e=e*a,c*b*c=b^-1,b*d=d*b,b*e=e*b,c*d=d*c,c*e=e*c,e*d*e=b^2*d^3>;
// generators/relations