Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #447 |
| automorphism | Aut(G) order 262144 |
| homology | Abelianization (H1) = C25 · Schur multiplier (H2) = C29 |
| direct product | C2×#3100 |
| subgroup | G/H | |
|---|---|---|
| center | C22×C4 | C2×D4 |
| commutator, Frattini, cosocle | C2×C4 | C25 |
| socle | C23 | C22×D4 |
| LCS | G ▷ C2×C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C22×C4 ◁ C22×C42 ◁ G | |
| LECS | G ▷ C2×C4 ▷ C2 ▷ C1 | |
1425 conjugacy classes of subgroups.
| minimal degree | μ(G) = 18 |
| transitive degree | μt(G) = 64 |
A minimal faithful permutation representation — 5 generators on 18 points:
(1,2);(3,4)(5,8)(6,7)(9,10)(11,12)(13,15)(14,17)(16,18);(4,7)(8,10);(12,15)(13,18)(16,17);(3,5,6,9)(4,8,7,10)76 conjugacy classes — view the full character table.
| maximal subgroup of | #111761, #111779, #111863, … |
| maximal normal subgroup of | #111761, #111779, #111863, … |
| maximal quotient of | C2×#20732, C2×#21113, C2×#21358, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 53515);