Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 2 |
| isoclinism | isoclinic class of #534 |
| automorphism | Aut(G) order 65536 |
| homology | Abelianization (H1) = C22×C42 · Schur multiplier (H2) = C23×C4 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, Frattini, cosocle | C22×C4 | C24 |
| commutator | C22 | C22×C42 |
| socle | C23 | C23×C4 |
| prime radical | C24 | C22×C4 |
| LCS | G ▷ C22 ▷ C1 | |
| UCS | C1 ◁ C22×C4 ◁ G | |
| LECS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
483 conjugacy classes of subgroups.
| minimal degree | μ(G) = 20 |
| transitive degree | μt(G) = 128 |
A minimal faithful permutation representation — 4 generators on 20 points:
(1,2,3,4)(5,6)(7,10)(8,9)(11,12)(13,14,18,15,17,19,16,20);(6,9)(7,11)(13,15,18,19,17,20,16,14);(5,7,8,11)(6,10,9,12)(13,16,17,18)(14,15,19,20);(6,9)(10,12)(14,19)(15,20)Polycyclic presentation:
2^8|a^2=f,b^2=g,c^2=e,f^2=h,g^2=h,b^a=be,c^a=ch,d^a=de,c^b=ce,d^b=dh88 conjugacy classes — view the full character table.
| maximal subgroup of | #109781, #109786, #109877, … |
| maximal normal subgroup of | #109781, #109786, #109877, … |
| maximal quotient of | #184470, #184489, #184498, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 13537);