Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 4 |
| isoclinism | isoclinic class of #12711 |
| automorphism | Aut(G) = C2×#72238017 (order 4096) · Inn(G) = #1781 · Out(G) = C22×D4 |
| homology | Abelianization (H1) = C22×C4 · Schur multiplier (H2) = C25 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle | C2 | #1781 |
| commutator | C22×C4 | C22×C4 |
| Frattini, cosocle | C2×#41 | C23 |
| prime radical | #3487 | C2 |
| LCS | G ▷ C22×C4 ▷ C22 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C2 ◁ C2×C4 ◁ C2×2−1+4 ◁ G | |
| LECS | G ▷ C2×#41 ▷ C22 ▷ C2 ▷ C1 | |
487 conjugacy classes of subgroups; only the 73 normal subgroups are shown.
This group has 487 conjugacy classes of subgroups — too many to draw. Only its 73 normal subgroups are shown.
Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.
| minimal degree | μ(G) = 32 |
| transitive degree | μt(G) = 32 |
A minimal faithful permutation representation — 3 generators on 32 points:
(1,2)(3,13)(4,16,18,27)(5,19,21,10)(6,11)(7,12)(8,15,24,20)(9,14,26,22)(17,30)(23,31)(25,28)(29,32);(1,3,7,6)(2,8,12,24)(4,14,18,22)(5,15,21,20)(9,23,26,30)(10,13,19,11)(16,29,27,25)(17,28,31,32);(1,4,7,18)(2,9,12,26)(3,14,6,22)(5,17,21,31)(8,23,24,30)(10,25,19,29)(11,27,13,16)(15,28,20,32)Polycyclic presentation:
2^8|a^2=f,b^2=h,c^2=h,e^2=h,b^a=bd,c^a=ce,d^a=dg,g^a=gh,f^b=fg,e^c=eh,f^c=fh,f^d=fh34 conjugacy classes — view the full character table.
| maximal subgroup of | #94448, #152135, #152137, … |
| maximal normal subgroup of | #94448, #152135, #152137, … |
| maximal quotient of | #129235, #129272, #129329, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 5702);