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) = C26 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, commutator, Frattini, socle, cosocle | C24 | C24 |
| prime radical | C23×D4 | C22 |
| LCS | G ▷ C24 ▷ C1 | |
| UCS | C1 ◁ C24 ◁ G | |
| LECS | G ▷ C24 ▷ C1 | |
1055 conjugacy classes of subgroups.
| minimal degree | μ(G) = 20 |
| transitive degree | μt(G) = 128 |
A minimal faithful permutation representation — 4 generators on 20 points:
(2,4)(9,10)(11,12)(13,14)(15,18)(16,20)(17,19);(6,8)(10,11)(13,15,17,20)(14,18,19,16);(5,6)(7,8)(9,11,12,10)(13,15)(14,16)(17,20)(18,19);(1,2)(3,4)(13,16)(14,15)(17,18)(19,20)Polycyclic presentation:
2^8|b^2=ef,c^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×#14737, #607679, #607690, … |
| maximal normal subgroup of | C2×#14737, #607679, #607690, … |
| maximal quotient of | #154101, #154197, #154202, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 7725);