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G = M4(2)⋊16D4  order 128 = 27

3rd semidirect product of M4(2) and D4 acting via D4/C22=C2

p-group, metabelian, nilpotent (class 3), monomial

Aliases: M4(2)⋊16D4, C8⋊D4⋊5C2, C8⋊2D4⋊5C2, C8.23(C2×D4), C8⋊8D4⋊13C2, C8⋊7D4⋊26C2, C4.Q8⋊5C22, (C2×D4).221D4, C2.12(D4○D8), C4⋊C4.31C23, C4⋊D4⋊4C22, (C2×Q8).176D4, C23.80(C2×D4), C2.D8⋊16C22, C22⋊Q8⋊4C22, C4.37(C4⋊D4), (C2×C8).258C23, (C2×C4).266C24, (C22×C8)⋊21C22, (C2×D8).56C22, (C2×D4).68C23, C4.160(C22×D4), (C2×Q8).56C23, D4⋊C4⋊93C22, C2.18(D4○SD16), Q8⋊C4⋊60C22, C22.8(C4⋊D4), (C2×SD16).8C22, M4(2)⋊C4⋊14C2, C22.29C24⋊11C2, C23.24D4⋊40C2, (C2×M4(2))⋊55C22, (C22×C4).988C23, C22.526(C22×D4), C22.31C24⋊7C2, (C22×D4).351C22, C42⋊C2.113C22, (C2×C8○D4)⋊5C2, C4.33(C2×C4○D4), (C2×C8⋊C22)⋊19C2, (C2×C4).134(C2×D4), C2.84(C2×C4⋊D4), (C2×D4⋊C4)⋊55C2, (C2×C4).287(C4○D4), (C2×C4⋊C4).595C22, (C2×C4○D4).129C22, SmallGroup(128,1794)

Series: Derived ►Chief ►Lower central ►Upper central ►Jennings

Derived series
C1 — C2×C4 — M4(2)⋊16D4
Chief series
C1 — C2 — C22 — C2×C4 — C22×C4 — C2×C4○D4 — C2×C8○D4 — M4(2)⋊16D4
Lower central
C1 — C2 — C2×C4 — M4(2)⋊16D4
Upper central
C1 — C22 — C2×C4○D4 — M4(2)⋊16D4
Jennings
C1 — C2 — C2 — C2×C4 — M4(2)⋊16D4

Subgroups: 548 in 252 conjugacy classes, 100 normal (38 characteristic)
C1, C2 [×3], C2 [×7], C4 [×2], C4 [×2], C4 [×7], C22, C22 [×2], C22 [×21], C8 [×4], C8 [×2], C2×C4 [×2], C2×C4 [×6], C2×C4 [×12], D4 [×22], Q8 [×4], C23, C23 [×2], C23 [×7], C42, C22⋊C4 [×9], C4⋊C4 [×2], C4⋊C4 [×2], C4⋊C4 [×3], C2×C8 [×2], C2×C8 [×2], C2×C8 [×6], M4(2) [×4], M4(2) [×4], D8 [×4], SD16 [×4], C22×C4, C22×C4 [×2], C22×C4 [×2], C2×D4 [×2], C2×D4 [×4], C2×D4 [×12], C2×Q8 [×2], C4○D4 [×8], C24, D4⋊C4 [×2], D4⋊C4 [×4], Q8⋊C4 [×2], C4.Q8 [×2], C2.D8 [×2], C2×C4⋊C4, C42⋊C2, C22≀C2 [×2], C4⋊D4 [×6], C4⋊D4 [×3], C22⋊Q8 [×2], C22⋊Q8, C4.4D4, C4⋊1D4, C22×C8, C22×C8 [×2], C2×M4(2), C2×M4(2) [×2], C8○D4 [×4], C2×D8 [×2], C2×SD16 [×2], C8⋊C22 [×4], C22×D4, C2×C4○D4 [×2], C2×D4⋊C4, C23.24D4, M4(2)⋊C4, C8⋊8D4 [×2], C8⋊7D4 [×2], C8⋊D4 [×2], C8⋊2D4 [×2], C22.29C24, C22.31C24, C2×C8○D4, C2×C8⋊C22, M4(2)⋊16D4

Quotients:
C1, C2 [×15], C22 [×35], D4 [×8], C23 [×15], C2×D4 [×12], C4○D4 [×2], C24, C4⋊D4 [×4], C22×D4 [×2], C2×C4○D4, C2×C4⋊D4, D4○D8, D4○SD16, M4(2)⋊16D4

Generators and relations
 G = < a,b,c,d | a8=b2=c4=d2=1, bab=a5, cac-1=a3, dad=a-1, cbc-1=a4b, bd=db, dcd=c-1 >

Smallest permutation representation
►On 32 points
Generators in S32
(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)

(1 29)(2 26)(3 31)(4 28)(5 25)(6 30)(7 27)(8 32)(9 20)(10 17)(11 22)(12 19)(13 24)(14 21)(15 18)(16 23)

(1 22 29 15)(2 17 30 10)(3 20 31 13)(4 23 32 16)(5 18 25 11)(6 21 26 14)(7 24 27 9)(8 19 28 12)

(2 8)(3 7)(4 6)(9 20)(10 19)(11 18)(12 17)(13 24)(14 23)(15 22)(16 21)(26 32)(27 31)(28 30)
 
G:=sub<Sym(32)| (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), (1,29)(2,26)(3,31)(4,28)(5,25)(6,30)(7,27)(8,32)(9,20)(10,17)(11,22)(12,19)(13,24)(14,21)(15,18)(16,23), (1,22,29,15)(2,17,30,10)(3,20,31,13)(4,23,32,16)(5,18,25,11)(6,21,26,14)(7,24,27,9)(8,19,28,12), (2,8)(3,7)(4,6)(9,20)(10,19)(11,18)(12,17)(13,24)(14,23)(15,22)(16,21)(26,32)(27,31)(28,30)>;
 
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), (1,29)(2,26)(3,31)(4,28)(5,25)(6,30)(7,27)(8,32)(9,20)(10,17)(11,22)(12,19)(13,24)(14,21)(15,18)(16,23), (1,22,29,15)(2,17,30,10)(3,20,31,13)(4,23,32,16)(5,18,25,11)(6,21,26,14)(7,24,27,9)(8,19,28,12), (2,8)(3,7)(4,6)(9,20)(10,19)(11,18)(12,17)(13,24)(14,23)(15,22)(16,21)(26,32)(27,31)(28,30) );
 
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)], [(1,29),(2,26),(3,31),(4,28),(5,25),(6,30),(7,27),(8,32),(9,20),(10,17),(11,22),(12,19),(13,24),(14,21),(15,18),(16,23)], [(1,22,29,15),(2,17,30,10),(3,20,31,13),(4,23,32,16),(5,18,25,11),(6,21,26,14),(7,24,27,9),(8,19,28,12)], [(2,8),(3,7),(4,6),(9,20),(10,19),(11,18),(12,17),(13,24),(14,23),(15,22),(16,21),(26,32),(27,31),(28,30)])
 

Matrix representation ►G ⊆ GL6(𝔽17)

0130000
1300000
0000611
000030
0011600
0014000
,
100000
010000
0016000
0001600
000010
000001
,
0160000
100000
0000160
0000161
001000
0011600
,
100000
0160000
001000
0011600
0000160
0000161

G:=sub<GL(6,GF(17))| [0,13,0,0,0,0,13,0,0,0,0,0,0,0,0,0,11,14,0,0,0,0,6,0,0,0,6,3,0,0,0,0,11,0,0,0],[1,0,0,0,0,0,0,1,0,0,0,0,0,0,16,0,0,0,0,0,0,16,0,0,0,0,0,0,1,0,0,0,0,0,0,1],[0,1,0,0,0,0,16,0,0,0,0,0,0,0,0,0,1,1,0,0,0,0,0,16,0,0,16,16,0,0,0,0,0,1,0,0],[1,0,0,0,0,0,0,16,0,0,0,0,0,0,1,1,0,0,0,0,0,16,0,0,0,0,0,0,16,16,0,0,0,0,0,1] >;
 

32 conjugacy classes

class 1 2A2B2C2D2E2F2G2H2I2J4A4B4C4D4E4F4G···4K8A8B8C8D8E···8J
order122222222224444444···488888···8
size111122448882222448···822224···4

32 irreducible representations

dim111111111111222244
type++++++++++++++++
imageC1C2C2C2C2C2C2C2C2C2C2C2D4D4D4C4○D4D4○D8D4○SD16
kernelM4(2)⋊16D4C2×D4⋊C4C23.24D4M4(2)⋊C4C8⋊8D4C8⋊7D4C8⋊D4C8⋊2D4C22.29C24C22.31C24C2×C8○D4C2×C8⋊C22M4(2)C2×D4C2×Q8C2×C4C2C2
# reps111122221111431422

In GAP, Magma, Sage, TeX 

M_{4(2)}\rtimes_{16}D_4
 
% in TeX
 
G:=Group("M4(2):16D4");
 
// GroupNames label
 
G:=SmallGroup(128,1794);
 
// by ID
 
G=gap.SmallGroup(128,1794);
 
# by ID
 
G:=PCGroup([7,-2,2,2,2,-2,2,-2,253,120,758,1018,521,2804,172]);
 
// Polycyclic
 
G:=Group<a,b,c,d|a^8=b^2=c^4=d^2=1,b*a*b=a^5,c*a*c^-1=a^3,d*a*d=a^-1,c*b*c^-1=a^4*b,b*d=d*b,d*c*d=c^-1>;
 
// generators/relations
 

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