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 | |
561 conjugacy classes of subgroups.
| minimal degree | μ(G) = 28 |
| transitive degree | μt(G) = 256 |
A minimal faithful permutation representation — 4 generators on 28 points:
(5,6,8,9)(7,10,11,12)(13,14,17,16)(15,19,20,18)(23,27)(25,28);(2,4)(6,9)(10,12)(15,20)(18,19)(21,22,24,26)(23,25,27,28);(1,2)(3,4)(5,6)(7,10)(8,9)(11,12)(13,15,17,20)(14,18,16,19)(21,22)(23,25)(24,26)(27,28);(5,7,8,11)(6,10,9,12)(13,16,17,14)(15,19,20,18)(21,23)(22,25)(24,27)(26,28)Polycyclic presentation:
2^8|a^2=f,b^2=h,c^2=ef,d^2=f,b^a=be,c^a=cf,d^a=dh,c^b=cg64 conjugacy classes — view the full character table.
| maximal subgroup of | C2×#15003, #608057, #608070, … |
| maximal normal subgroup of | C2×#15003, #608057, #608070, … |
| maximal quotient of | #154151, #154211, #154238, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 7991);