Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #1504 |
| automorphism | Aut(G) order 65536 |
| homology | Abelianization (H1) = C23×C4 · Schur multiplier (H2) = C25 |
| direct product | C2×#1550 |
| subgroup | G/H | |
|---|---|---|
| center, socle | C23 | C2×C22⋊C4 |
| commutator | C2×C4 | C23×C4 |
| Frattini, cosocle | C42 | C24 |
| prime radical | C24 | C22⋊C4 |
| LCS | G ▷ C2×C4 ▷ C22 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ C22×C42 ◁ G | |
| LECS | G ▷ C42 ▷ C22 ▷ C1 | |
537 conjugacy classes of subgroups.
| minimal degree | μ(G) = 18 |
| transitive degree | μt(G) = 128 |
A minimal faithful permutation representation — 4 generators on 18 points:
(1,2);(4,8)(5,6)(9,10)(11,12,15,18,16,13,14,17);(3,4,7,9)(5,8,6,10)(11,13,16,12)(14,17,15,18);(3,5,7,6)(4,8,9,10)64 conjugacy classes — view the full character table.
| maximal subgroup of | #106219, #107371, #107635, … |
| maximal normal subgroup of | #106219, #107371, #107635, … |
| maximal quotient of | C2×#7577, C2×#7589, #160497, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 10695);