Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 4 |
| isoclinism | isoclinic class of #2204 |
| automorphism | Aut(G) order 8192 |
| homology | Abelianization (H1) = C24 · Schur multiplier (H2) = C26 |
| direct product | C2×#2204 |
| subgroup | G/H | |
|---|---|---|
| center, socle | C22 | B(4,𝔽2) |
| commutator, Frattini, cosocle | C2×Q8 | C24 |
| LCS | G ▷ C2×Q8 ▷ C22 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C22 ◁ C23 ◁ C22×Q8 ◁ G | |
| LECS | G ▷ C2×Q8 ▷ C22 ▷ C2 ▷ C1 | |
600 conjugacy classes of subgroups; only the 111 normal subgroups are shown.
This group has 600 conjugacy classes of subgroups — too many to draw. Only its 111 normal subgroups are shown.
Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.
| minimal degree | μ(G) = 18 |
| transitive degree | μt(G) = 32 |
A minimal faithful permutation representation — 4 generators on 18 points:
(1,2);(3,4)(5,11)(6,9)(7,15)(8,12)(10,14)(13,18)(16,17);(4,9)(5,7)(6,14)(10,12)(11,17)(15,18);(3,5)(6,13)(7,8)(9,10)(11,15)(14,16)40 conjugacy classes — view the full character table.
| maximal subgroup of | #152559, #153123, #153139, … |
| maximal normal subgroup of | #152559, #153123, #153139, … |
| maximal quotient of | C2×#12099, C2×#12100, C2×#12211, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 26553);