Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #23990 |
| automorphism | Aut(G) = C2×#72236721 (order 4096) · Inn(G) = #2404 · Out(G) = C22×D4 |
| homology | Abelianization (H1) = C24 · Schur multiplier (H2) = C26 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle | C2 | #2404 |
| commutator, Frattini, cosocle | C22×C4 | C24 |
| LCS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C2 ◁ C22×C4 ◁ G | |
| LECS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
630 conjugacy classes of subgroups; only the 121 normal subgroups are shown.
This group has 630 conjugacy classes of subgroups — too many to draw. Only its 121 normal subgroups are shown.
Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.
| minimal degree | μ(G) = 16 |
| transitive degree | μt(G) = 16 |
A minimal faithful permutation representation — 4 generators on 16 points:
(4,11)(6,12)(7,14)(10,15);(2,6,8,12)(7,13,14,16);(1,2)(3,7)(4,12)(5,8)(6,11)(9,14)(10,16)(13,15);(1,3)(2,7)(4,10)(5,9)(6,13)(8,14)(11,15)(12,16)Polycyclic presentation:
2^8|b^2=e,g^2=h,b^a=be,c^a=cf,d^a=de,g^a=gh,c^b=cg,e^c=eh,g^c=gh,f^d=fh40 conjugacy classes — view the full character table.
| maximal subgroup of | #508105, #508107, #508110, … |
| maximal normal subgroup of | #508105, #508107, #508110, … |
| maximal quotient of | #251671, #251672, #251673, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 16978);