direct product, p-group, metabelian, nilpotent (class 3), monomial
Aliases: C4xC8:C22, C42.441D4, C42.273C23, D8:4(C2xC4), (C4xD8):27C2, C8:1(C22xC4), (C4xC8):20C22, SD16:1(C2xC4), C4.133(C4xD4), D4:3(C22xC4), C4o2(D8:C4), D8:C4:33C2, Q8:3(C22xC4), (C4xSD16):11C2, (C4xD4):80C22, M4(2):7(C2xC4), (C4xM4(2)):1C2, C4.21(C23xC4), (C4xQ8):76C22, C22.46(C4xD4), C4.Q8:45C22, C2.D8:65C22, C8:C4:36C22, C4:C4.361C23, (C2xC8).412C23, (C2xC4).201C24, C23.643(C2xD4), (C22xC4).710D4, C4o2(SD16:C4), SD16:C4:54C2, D4:C4:88C22, Q8:C4:91C22, (C2xD4).370C23, (C2xD8).157C22, (C2xQ8).343C23, C4o2(M4(2):C4), M4(2):C4:46C2, C4o2(C23.37D4), C4o2(C23.36D4), C2.4(D8:C22), C23.37D4:39C2, C23.36D4:48C2, (C22xC4).922C23, (C2xC42).766C22, C22.145(C22xD4), (C2xSD16).107C22, (C22xD4).559C22, C42:C2.297C22, (C2xM4(2)).350C22, (C2xC4xD4):58C2, C2.61(C2xC4xD4), (C4xC4oD4):5C2, C4oD4:9(C2xC4), C4.9(C2xC4oD4), (C2xD4):34(C2xC4), C2.6(C2xC8:C22), (C2xC4)o(D8:C4), (C2xC4).691(C2xD4), (C2xC8:C22).13C2, (C2xC4).68(C22xC4), (C2xC4)o(SD16:C4), (C2xC4).262(C4oD4), (C2xC4:C4).912C22, (C2xC4oD4).291C22, (C2xC4)o(C23.37D4), (C2xC4)o(C2xC8:C22), SmallGroup(128,1676)
Series: Derived ►Chief ►Lower central ►Upper central ►Jennings
Generators and relations for C4xC8:C22
G = < a,b,c,d | a4=b8=c2=d2=1, ab=ba, ac=ca, ad=da, cbc=b3, dbd=b5, cd=dc >
Subgroups: 500 in 274 conjugacy classes, 142 normal (44 characteristic)
C1, C2, C2, C4, C4, C4, C22, C22, C22, C8, C8, C2xC4, C2xC4, C2xC4, D4, D4, Q8, Q8, C23, C23, C42, C42, C22:C4, C4:C4, C4:C4, C4:C4, C2xC8, M4(2), M4(2), D8, SD16, C22xC4, C22xC4, C2xD4, C2xD4, C2xD4, C2xQ8, C4oD4, C4oD4, C24, C4xC8, C8:C4, D4:C4, Q8:C4, C4.Q8, C2.D8, C2xC42, C2xC42, C2xC22:C4, C2xC4:C4, C42:C2, C42:C2, C4xD4, C4xD4, C4xD4, C4xQ8, C2xM4(2), C2xD8, C2xSD16, C8:C22, C23xC4, C22xD4, C2xC4oD4, C4xM4(2), C23.36D4, C23.37D4, M4(2):C4, C4xD8, C4xSD16, SD16:C4, D8:C4, C2xC4xD4, C4xC4oD4, C2xC8:C22, C4xC8:C22
Quotients: C1, C2, C4, C22, C2xC4, D4, C23, C22xC4, C2xD4, C4oD4, C24, C4xD4, C8:C22, C23xC4, C22xD4, C2xC4oD4, C2xC4xD4, C2xC8:C22, D8:C22, C4xC8:C22
►On 32 points
(1 19 26 13)(2 20 27 14)(3 21 28 15)(4 22 29 16)(5 23 30 9)(6 24 31 10)(7 17 32 11)(8 18 25 12)
(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)
(2 4)(3 7)(6 8)(10 12)(11 15)(14 16)(17 21)(18 24)(20 22)(25 31)(27 29)(28 32)
(2 6)(4 8)(10 14)(12 16)(18 22)(20 24)(25 29)(27 31)
G:=sub<Sym(32)| (1,19,26,13)(2,20,27,14)(3,21,28,15)(4,22,29,16)(5,23,30,9)(6,24,31,10)(7,17,32,11)(8,18,25,12), (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), (2,4)(3,7)(6,8)(10,12)(11,15)(14,16)(17,21)(18,24)(20,22)(25,31)(27,29)(28,32), (2,6)(4,8)(10,14)(12,16)(18,22)(20,24)(25,29)(27,31)>;
G:=Group( (1,19,26,13)(2,20,27,14)(3,21,28,15)(4,22,29,16)(5,23,30,9)(6,24,31,10)(7,17,32,11)(8,18,25,12), (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), (2,4)(3,7)(6,8)(10,12)(11,15)(14,16)(17,21)(18,24)(20,22)(25,31)(27,29)(28,32), (2,6)(4,8)(10,14)(12,16)(18,22)(20,24)(25,29)(27,31) );
G=PermutationGroup([[(1,19,26,13),(2,20,27,14),(3,21,28,15),(4,22,29,16),(5,23,30,9),(6,24,31,10),(7,17,32,11),(8,18,25,12)], [(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)], [(2,4),(3,7),(6,8),(10,12),(11,15),(14,16),(17,21),(18,24),(20,22),(25,31),(27,29),(28,32)], [(2,6),(4,8),(10,14),(12,16),(18,22),(20,24),(25,29),(27,31)]])
44 conjugacy classes
| class | 1 | 2A | 2B | 2C | 2D | 2E | 2F | ··· | 2K | 4A | 4B | 4C | 4D | 4E | ··· | 4N | 4O | ··· | 4X | 8A | ··· | 8H |
| order | 1 | 2 | 2 | 2 | 2 | 2 | 2 | ··· | 2 | 4 | 4 | 4 | 4 | 4 | ··· | 4 | 4 | ··· | 4 | 8 | ··· | 8 |
| size | 1 | 1 | 1 | 1 | 2 | 2 | 4 | ··· | 4 | 1 | 1 | 1 | 1 | 2 | ··· | 2 | 4 | ··· | 4 | 4 | ··· | 4 |
44 irreducible representations
| dim | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 4 | 4 |
| type | + | + | + | + | + | + | + | + | + | + | + | + | + | + | + | |||
| image | C1 | C2 | C2 | C2 | C2 | C2 | C2 | C2 | C2 | C2 | C2 | C2 | C4 | D4 | D4 | C4oD4 | C8:C22 | D8:C22 |
| kernel | C4xC8:C22 | C4xM4(2) | C23.36D4 | C23.37D4 | M4(2):C4 | C4xD8 | C4xSD16 | SD16:C4 | D8:C4 | C2xC4xD4 | C4xC4oD4 | C2xC8:C22 | C8:C22 | C42 | C22xC4 | C2xC4 | C4 | C2 |
| # reps | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 16 | 2 | 2 | 4 | 2 | 2 |
Matrix representation of C4xC8:C22 ►in GL6(F17)
| 4 | 0 | 0 | 0 | 0 | 0 |
| 0 | 4 | 0 | 0 | 0 | 0 |
| 0 | 0 | 4 | 0 | 0 | 0 |
| 0 | 0 | 0 | 4 | 0 | 0 |
| 0 | 0 | 0 | 0 | 4 | 0 |
| 0 | 0 | 0 | 0 | 0 | 4 |
| 16 | 8 | 0 | 0 | 0 | 0 |
| 4 | 1 | 0 | 0 | 0 | 0 |
| 0 | 0 | 1 | 0 | 13 | 0 |
| 0 | 0 | 1 | 0 | 0 | 13 |
| 0 | 0 | 13 | 4 | 0 | 0 |
| 0 | 0 | 9 | 0 | 0 | 16 |
| 1 | 0 | 0 | 0 | 0 | 0 |
| 13 | 16 | 0 | 0 | 0 | 0 |
| 0 | 0 | 1 | 0 | 4 | 13 |
| 0 | 0 | 0 | 16 | 4 | 0 |
| 0 | 0 | 0 | 0 | 1 | 0 |
| 0 | 0 | 0 | 0 | 2 | 16 |
| 1 | 0 | 0 | 0 | 0 | 0 |
| 0 | 1 | 0 | 0 | 0 | 0 |
| 0 | 0 | 1 | 0 | 0 | 13 |
| 0 | 0 | 0 | 1 | 0 | 13 |
| 0 | 0 | 0 | 0 | 16 | 0 |
| 0 | 0 | 0 | 0 | 0 | 16 |
G:=sub<GL(6,GF(17))| [4,0,0,0,0,0,0,4,0,0,0,0,0,0,4,0,0,0,0,0,0,4,0,0,0,0,0,0,4,0,0,0,0,0,0,4],[16,4,0,0,0,0,8,1,0,0,0,0,0,0,1,1,13,9,0,0,0,0,4,0,0,0,13,0,0,0,0,0,0,13,0,16],[1,13,0,0,0,0,0,16,0,0,0,0,0,0,1,0,0,0,0,0,0,16,0,0,0,0,4,4,1,2,0,0,13,0,0,16],[1,0,0,0,0,0,0,1,0,0,0,0,0,0,1,0,0,0,0,0,0,1,0,0,0,0,0,0,16,0,0,0,13,13,0,16] >;
C4xC8:C22 in GAP, Magma, Sage, TeX
C_4\times C_8\rtimes C_2^2
% in TeX
G:=Group("C4xC8:C2^2"); // GroupNames label
G:=SmallGroup(128,1676);
// by ID
G=gap.SmallGroup(128,1676);
# by ID
G:=PCGroup([7,-2,2,2,2,-2,2,-2,224,253,184,2019,2804,1411,172]);
// Polycyclic
G:=Group<a,b,c,d|a^4=b^8=c^2=d^2=1,a*b=b*a,a*c=c*a,a*d=d*a,c*b*c=b^3,d*b*d=b^5,c*d=d*c>;
// generators/relations