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) = C24×C42 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, commutator, Frattini, socle, cosocle | C24 | C24 |
| prime radical | C2×#392 | C2 |
| LCS | G ▷ C24 ▷ C1 | |
| UCS | C1 ◁ C24 ◁ G | |
| LECS | G ▷ C24 ▷ C1 | |
1153 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)(10,12)(14,15)(16,20);(6,8)(10,12)(13,14,17,15)(16,19,20,18);(5,6)(7,8)(9,10,11,12)(13,15,17,14)(16,19,20,18);(1,2)(3,4)(13,16,17,20)(14,18,15,19)Polycyclic presentation:
2^8|b^2=e,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×#15317, #608852, #609013, … |
| maximal normal subgroup of | C2×#15317, #608852, #609013, … |
| maximal quotient of | #154689, #154739, #154766, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 8305);