Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 2 |
| isoclinism | isoclinic class of #392 |
| automorphism | Aut(G) order 1048576 |
| homology | Abelianization (H1) = C25 · Schur multiplier (H2) = C29 |
| direct product | C2×#2392 |
| subgroup | G/H | |
|---|---|---|
| center | C23×C4 | C23 |
| commutator, Frattini, cosocle | C23 | C25 |
| socle | C24 | C24 |
| prime radical | C2×#392 | C2 |
| LCS | G ▷ C23 ▷ C1 | |
| UCS | C1 ◁ C23×C4 ◁ G | |
| LECS | G ▷ C23 ▷ C1 | |
2067 conjugacy classes of subgroups.
| minimal degree | μ(G) = 18 |
| transitive degree | μt(G) = 128 |
A minimal faithful permutation representation — 5 generators on 18 points:
(1,2);(3,4,5,6)(11,12)(13,16)(14,15)(17,18);(7,8)(9,10)(12,15)(16,18);(4,6)(8,10);(11,13,14,17)(12,16,15,18)88 conjugacy classes — view the full character table.
| maximal subgroup of | #115157, #129731, #129737, … |
| maximal normal subgroup of | #115157, #129731, #129737, … |
| maximal quotient of | C2×#13839, C2×#13842, C2×#13847, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 27527);