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) = C25 |
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 | |
731 conjugacy classes of subgroups.
| minimal degree | μ(G) = 20 |
| transitive degree | μt(G) = 256 |
A minimal faithful permutation representation — 4 generators on 20 points:
(2,4)(5,6)(7,8)(13,14,16,18)(15,19,20,17);(6,7)(9,10,11,12);(9,10)(11,12)(13,15,16,20)(14,17,18,19);(1,2)(3,4)(5,7,8,6)(13,14)(15,17)(16,18)(19,20)Polycyclic presentation:
2^8|a^2=f,b^2=g,c^2=f,d^2=e,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×#15623, #609247, #609253, … |
| maximal normal subgroup of | C2×#15623, #609247, #609253, … |
| maximal quotient of | #154733, #154734, #154740, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 8611);