Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 2 |
| isoclinism | isoclinic class of #15257 |
| automorphism | Aut(G) order 65536 |
| homology | Abelianization (H1) = C24 · Schur multiplier (H2) = C2×C42 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, commutator, Frattini, socle, cosocle | C24 | C24 |
| prime radical | C25 | C23 |
| LCS | G ▷ C24 ▷ C1 | |
| UCS | C1 ◁ C24 ◁ G | |
| LECS | G ▷ C24 ▷ C1 | |
639 conjugacy classes of subgroups.
| minimal degree | μ(G) = 28 |
| transitive degree | μt(G) = 128 |
A minimal faithful permutation representation — 4 generators on 28 points:
(2,4)(5,6)(7,10)(8,9)(11,12)(13,14,17,16)(15,19,20,18)(22,25)(23,27);(6,9)(7,11)(15,20)(18,19)(21,22,24,25)(23,28,27,26);(5,7,8,11)(6,10,9,12)(13,15,17,20)(14,18,16,19)(21,22)(23,26)(24,25)(27,28);(1,2)(3,4)(5,6)(7,10)(8,9)(11,12)(13,16,17,14)(15,19,20,18)(21,23,24,27)(22,26,25,28)Polycyclic presentation:
2^8|a^2=eg,b^2=efg,c^2=ef,d^2=f,b^a=be,c^a=cf,d^a=dh,c^b=cg,d^b=de58 conjugacy classes — view the full character table.
| maximal subgroup of | C2×#15750, #609401, #609414, … |
| maximal normal subgroup of | C2×#15750, #609401, #609414, … |
| maximal quotient of | #154760, #154829, #154835, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 8738);