Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #3264 |
| automorphism | Aut(G) = C28×D4 (order 2048) · Inn(G) = C22×D4 · Out(G) = C26 |
| homology | Abelianization (H1) = C23×C4 · Schur multiplier (H2) = C24 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center | C2×C4 | C22×D4 |
| commutator | C2×C4 | C23×C4 |
| Frattini, cosocle | C42 | C24 |
| socle | C22 | C2×C4×D4 |
| prime radical | #3171 | C2 |
| LCS | G ▷ C2×C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C2×C4 ◁ #431 ◁ G | |
| LECS | G ▷ C42 ▷ C22 ▷ C1 | |
306 conjugacy classes of subgroups.
| minimal degree | μ(G) = 32 |
| transitive degree | μt(G) = 128 |
A minimal faithful permutation representation — 4 generators on 32 points:
(1,2,7,11)(3,12,4,9)(5,10,6,15)(8,14,16,13)(17,18,22,25,21,24,30,32)(19,26,28,29,27,23,31,20);(1,3,7,4)(2,8,11,16)(5,13,6,14)(9,15,12,10)(17,19)(18,23)(20,25)(21,27)(22,28)(24,26)(29,32)(30,31);(1,4,7,3)(2,9,11,12)(5,13,6,14)(8,15,16,10)(17,20,22,26,21,29,30,23)(18,19,25,28,24,27,32,31);(1,5,7,6)(2,10,11,15)(3,13,4,14)(8,9,16,12)(19,27)(20,29)(23,26)(28,31)Polycyclic presentation:
2^8|a^2=f,b^2=g,c^2=f,d^2=g,e^2=g,f^2=h,b^a=be,e^a=eg,d^b=dh,e^b=eg,d^c=dgh58 conjugacy classes — view the full character table.
| maximal subgroup of | C2×#18082, #6345127, #6345143, … |
| maximal normal subgroup of | C2×#18082, #6345127, #6345143, … |
| maximal quotient of | #183173, #183174, #183685, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 11070);