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G = C42.304C23order 128 = 27

165th non-split extension by C42 of C23 acting via C23/C2=C22

p-group, metabelian, nilpotent (class 2), monomial

Aliases: C42.304C23, C4.1212- 1+4, (C8×Q8)⋊35C2, C4⋊Q8.36C4, C84Q842C2, C4.41(C8○D4), (C4×C8).31C22, C22⋊Q8.28C4, C4⋊C8.369C22, (C2×C4).683C24, (C2×C8).443C23, C42.231(C2×C4), C42.C2.21C4, (C4×Q8).284C22, C8⋊C4.102C22, C22⋊C8.239C22, C23.108(C22×C4), C22.206(C23×C4), (C22×C4).947C23, (C2×C42).790C22, C42.12C4.48C2, C42⋊C2.89C22, C42.7C22.4C2, C23.37C23.25C2, C2.26(C23.32C23), C2.34(C2×C8○D4), C4⋊C4.170(C2×C4), C22⋊C4.24(C2×C4), (C2×C4).85(C22×C4), (C2×Q8).167(C2×C4), (C22×C4).362(C2×C4), SmallGroup(128,1718)

Series: Derived Chief Lower central Upper central Jennings

C1C22 — C42.304C23
C1C2C4C2×C4C22×C4C2×C42C23.37C23 — C42.304C23
C1C22 — C42.304C23
C1C2×C4 — C42.304C23
C1C2C2C2×C4 — C42.304C23

Generators and relations for C42.304C23
 G = < a,b,c,d,e | a4=b4=1, c2=b, d2=e2=a2b2, ab=ba, ac=ca, dad-1=a-1, eae-1=ab2, bc=cb, bd=db, be=eb, cd=dc, ece-1=a2b2c, ede-1=a2d >

Subgroups: 204 in 165 conjugacy classes, 128 normal (12 characteristic)
C1, C2, C2, C2, C4, C4, C22, C22, C8, C2×C4, C2×C4, C2×C4, Q8, C23, C42, C42, C22⋊C4, C4⋊C4, C2×C8, C22×C4, C22×C4, C2×Q8, C4×C8, C8⋊C4, C22⋊C8, C4⋊C8, C2×C42, C42⋊C2, C4×Q8, C22⋊Q8, C42.C2, C4⋊Q8, C42.12C4, C42.7C22, C8×Q8, C84Q8, C23.37C23, C42.304C23
Quotients: C1, C2, C4, C22, C2×C4, C23, C22×C4, C24, C8○D4, C23×C4, 2- 1+4, C23.32C23, C2×C8○D4, C42.304C23

Smallest permutation representation of C42.304C23
On 64 points
Generators in S64
(1 59 51 41)(2 60 52 42)(3 61 53 43)(4 62 54 44)(5 63 55 45)(6 64 56 46)(7 57 49 47)(8 58 50 48)(9 36 32 17)(10 37 25 18)(11 38 26 19)(12 39 27 20)(13 40 28 21)(14 33 29 22)(15 34 30 23)(16 35 31 24)
(1 3 5 7)(2 4 6 8)(9 11 13 15)(10 12 14 16)(17 19 21 23)(18 20 22 24)(25 27 29 31)(26 28 30 32)(33 35 37 39)(34 36 38 40)(41 43 45 47)(42 44 46 48)(49 51 53 55)(50 52 54 56)(57 59 61 63)(58 60 62 64)
(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)
(1 31 55 12)(2 32 56 13)(3 25 49 14)(4 26 50 15)(5 27 51 16)(6 28 52 9)(7 29 53 10)(8 30 54 11)(17 64 40 42)(18 57 33 43)(19 58 34 44)(20 59 35 45)(21 60 36 46)(22 61 37 47)(23 62 38 48)(24 63 39 41)
(1 63 55 41)(2 42 56 64)(3 57 49 43)(4 44 50 58)(5 59 51 45)(6 46 52 60)(7 61 53 47)(8 48 54 62)(9 17 28 40)(10 33 29 18)(11 19 30 34)(12 35 31 20)(13 21 32 36)(14 37 25 22)(15 23 26 38)(16 39 27 24)

G:=sub<Sym(64)| (1,59,51,41)(2,60,52,42)(3,61,53,43)(4,62,54,44)(5,63,55,45)(6,64,56,46)(7,57,49,47)(8,58,50,48)(9,36,32,17)(10,37,25,18)(11,38,26,19)(12,39,27,20)(13,40,28,21)(14,33,29,22)(15,34,30,23)(16,35,31,24), (1,3,5,7)(2,4,6,8)(9,11,13,15)(10,12,14,16)(17,19,21,23)(18,20,22,24)(25,27,29,31)(26,28,30,32)(33,35,37,39)(34,36,38,40)(41,43,45,47)(42,44,46,48)(49,51,53,55)(50,52,54,56)(57,59,61,63)(58,60,62,64), (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), (1,31,55,12)(2,32,56,13)(3,25,49,14)(4,26,50,15)(5,27,51,16)(6,28,52,9)(7,29,53,10)(8,30,54,11)(17,64,40,42)(18,57,33,43)(19,58,34,44)(20,59,35,45)(21,60,36,46)(22,61,37,47)(23,62,38,48)(24,63,39,41), (1,63,55,41)(2,42,56,64)(3,57,49,43)(4,44,50,58)(5,59,51,45)(6,46,52,60)(7,61,53,47)(8,48,54,62)(9,17,28,40)(10,33,29,18)(11,19,30,34)(12,35,31,20)(13,21,32,36)(14,37,25,22)(15,23,26,38)(16,39,27,24)>;

G:=Group( (1,59,51,41)(2,60,52,42)(3,61,53,43)(4,62,54,44)(5,63,55,45)(6,64,56,46)(7,57,49,47)(8,58,50,48)(9,36,32,17)(10,37,25,18)(11,38,26,19)(12,39,27,20)(13,40,28,21)(14,33,29,22)(15,34,30,23)(16,35,31,24), (1,3,5,7)(2,4,6,8)(9,11,13,15)(10,12,14,16)(17,19,21,23)(18,20,22,24)(25,27,29,31)(26,28,30,32)(33,35,37,39)(34,36,38,40)(41,43,45,47)(42,44,46,48)(49,51,53,55)(50,52,54,56)(57,59,61,63)(58,60,62,64), (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), (1,31,55,12)(2,32,56,13)(3,25,49,14)(4,26,50,15)(5,27,51,16)(6,28,52,9)(7,29,53,10)(8,30,54,11)(17,64,40,42)(18,57,33,43)(19,58,34,44)(20,59,35,45)(21,60,36,46)(22,61,37,47)(23,62,38,48)(24,63,39,41), (1,63,55,41)(2,42,56,64)(3,57,49,43)(4,44,50,58)(5,59,51,45)(6,46,52,60)(7,61,53,47)(8,48,54,62)(9,17,28,40)(10,33,29,18)(11,19,30,34)(12,35,31,20)(13,21,32,36)(14,37,25,22)(15,23,26,38)(16,39,27,24) );

G=PermutationGroup([[(1,59,51,41),(2,60,52,42),(3,61,53,43),(4,62,54,44),(5,63,55,45),(6,64,56,46),(7,57,49,47),(8,58,50,48),(9,36,32,17),(10,37,25,18),(11,38,26,19),(12,39,27,20),(13,40,28,21),(14,33,29,22),(15,34,30,23),(16,35,31,24)], [(1,3,5,7),(2,4,6,8),(9,11,13,15),(10,12,14,16),(17,19,21,23),(18,20,22,24),(25,27,29,31),(26,28,30,32),(33,35,37,39),(34,36,38,40),(41,43,45,47),(42,44,46,48),(49,51,53,55),(50,52,54,56),(57,59,61,63),(58,60,62,64)], [(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)], [(1,31,55,12),(2,32,56,13),(3,25,49,14),(4,26,50,15),(5,27,51,16),(6,28,52,9),(7,29,53,10),(8,30,54,11),(17,64,40,42),(18,57,33,43),(19,58,34,44),(20,59,35,45),(21,60,36,46),(22,61,37,47),(23,62,38,48),(24,63,39,41)], [(1,63,55,41),(2,42,56,64),(3,57,49,43),(4,44,50,58),(5,59,51,45),(6,46,52,60),(7,61,53,47),(8,48,54,62),(9,17,28,40),(10,33,29,18),(11,19,30,34),(12,35,31,20),(13,21,32,36),(14,37,25,22),(15,23,26,38),(16,39,27,24)]])

50 conjugacy classes

class 1 2A2B2C2D4A4B4C4D4E···4L4M···4U8A···8P8Q···8X
order1222244444···44···48···88···8
size1111411112···24···42···24···4

50 irreducible representations

dim11111111124
type++++++-
imageC1C2C2C2C2C2C4C4C4C8○D42- 1+4
kernelC42.304C23C42.12C4C42.7C22C8×Q8C84Q8C23.37C23C22⋊Q8C42.C2C4⋊Q8C4C4
# reps124441844162

Matrix representation of C42.304C23 in GL4(𝔽17) generated by

161500
0100
001315
0004
,
4000
0400
00130
00013
,
2400
01500
0080
0008
,
4000
0400
00160
0041
,
161500
1100
001315
00164
G:=sub<GL(4,GF(17))| [16,0,0,0,15,1,0,0,0,0,13,0,0,0,15,4],[4,0,0,0,0,4,0,0,0,0,13,0,0,0,0,13],[2,0,0,0,4,15,0,0,0,0,8,0,0,0,0,8],[4,0,0,0,0,4,0,0,0,0,16,4,0,0,0,1],[16,1,0,0,15,1,0,0,0,0,13,16,0,0,15,4] >;

C42.304C23 in GAP, Magma, Sage, TeX

C_4^2._{304}C_2^3
% in TeX

G:=Group("C4^2.304C2^3");
// GroupNames label

G:=SmallGroup(128,1718);
// by ID

G=gap.SmallGroup(128,1718);
# by ID

G:=PCGroup([7,-2,2,2,2,-2,2,-2,224,253,120,891,100,675,1018,124]);
// Polycyclic

G:=Group<a,b,c,d,e|a^4=b^4=1,c^2=b,d^2=e^2=a^2*b^2,a*b=b*a,a*c=c*a,d*a*d^-1=a^-1,e*a*e^-1=a*b^2,b*c=c*b,b*d=d*b,b*e=e*b,c*d=d*c,e*c*e^-1=a^2*b^2*c,e*d*e^-1=a^2*d>;
// generators/relations

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