Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 2 |
| isoclinism | isoclinic class of #14715 |
| automorphism | Aut(G) order 65536 |
| homology | Abelianization (H1) = C24 · Schur multiplier (H2) = C22×C4 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, commutator, Frattini, socle, prime radical, cosocle | C24 | C24 |
| LCS | G ▷ C24 ▷ C1 | |
| UCS | C1 ◁ C24 ◁ G | |
| LECS | G ▷ C24 ▷ C1 | |
587 conjugacy classes of subgroups.
| minimal degree | μ(G) = 28 |
| transitive degree | μt(G) = 256 |
A minimal faithful permutation representation — 4 generators on 28 points:
(2,4)(5,6,8,10)(7,9,11,12)(13,14,17,18)(15,19,20,16)(21,22,26,25)(23,28,24,27);(7,11)(9,12)(14,18)(15,20)(21,23,26,24)(22,27,25,28);(5,7)(6,9)(8,11)(10,12)(13,15)(14,19)(16,18)(17,20)(21,24,26,23)(22,28,25,27);(1,2)(3,4)(5,6)(7,9)(8,10)(11,12)(13,16,17,19)(14,15,18,20)(21,25,26,22)(23,28,24,27)Polycyclic presentation:
2^8|a^2=fg,b^2=f,c^2=f,d^2=e,b^a=be,c^a=cf,d^a=dh,c^b=cg64 conjugacy classes — view the full character table.
| maximal subgroup of | C2×#14852, #607821, #607825, … |
| maximal normal subgroup of | C2×#14852, #607821, #607825, … |
| maximal quotient of | #154111, #154244, #154245, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 7840);