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, prime radical, cosocle | C24 | C24 |
| LCS | G ▷ C24 ▷ C1 | |
| UCS | C1 ◁ C24 ◁ G | |
| LECS | G ▷ C24 ▷ C1 | |
595 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)(5,6,9,7)(8,11,12,10)(13,14)(15,19)(16,17)(18,20)(21,22,25,28)(23,26,24,27);(6,7)(8,12)(14,16)(18,19)(21,23,25,24)(22,26,28,27);(5,7,9,6)(8,11,12,10)(13,15)(14,18)(16,19)(17,20)(21,22)(23,26)(24,27)(25,28);(1,2)(3,4)(5,8)(6,10)(7,11)(9,12)(13,16,17,14)(15,19,20,18)(21,24,25,23)(22,27,28,26)Polycyclic presentation:
2^8|a^2=ef,b^2=efg,c^2=g,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×#15857, #609589, #609618, … |
| maximal normal subgroup of | C2×#15857, #609589, #609618, … |
| maximal quotient of | #154792, #154892, #154894, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 8845);