Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #23872 |
| automorphism | Aut(G) = C2×#72236721 (order 4096) · Inn(G) = #2403 · Out(G) = C25 |
| homology | Abelianization (H1) = C24 · Schur multiplier (H2) = C27 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle | C2 | #2403 |
| commutator, Frattini, cosocle | C22×C4 | C24 |
| LCS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C2 ◁ C22×C4 ◁ G | |
| LECS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
843 conjugacy classes of subgroups; only the 141 normal subgroups are shown.
This group has 843 conjugacy classes of subgroups — too many to draw. Only its 141 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 — 4 generators on 32 points:
(1,2)(3,11)(4,15)(5,18)(6,10)(7,13)(8,16)(9,20)(12,23)(14,25)(17,26)(19,22)(21,24)(27,28)(29,31)(30,32);(1,3,6,14)(2,7,10,22)(4,12,17,29)(5,19,20,13)(8,23,24,31)(9,25,18,11)(15,27,26,32)(16,30,21,28);(5,20)(7,22)(9,18)(13,19)(15,26)(16,21)(23,31)(28,30);(1,4)(2,8)(3,12)(5,21)(6,17)(7,23)(9,26)(10,24)(11,27)(13,30)(14,29)(15,18)(16,20)(19,28)(22,31)(25,32)Polycyclic presentation:
2^8|b^2=h,e^2=h,b^a=be,c^a=cf,d^a=de,e^a=eh,g^a=gh,c^b=cg,e^b=eh,e^c=eh,e^d=eh,f^d=fh40 conjugacy classes — view the full character table.
| maximal subgroup of | #152667, #152672, #152705, … |
| maximal normal subgroup of | #152667, #152672, #152705, … |
| maximal quotient of | #244549, #244550, #244560, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 16861);