Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #3055 |
| automorphism | ? |
| homology | Abelianization (H1) = C25 · Schur multiplier (H2) = C28×C4 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center | C2×C4 | C22×D4 |
| commutator, Frattini, cosocle | C2×C4 | C25 |
| socle | C22 | C23×D4 |
| LCS | G ▷ C2×C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C2×C4 ◁ C22×C42 ◁ G | |
| LECS | G ▷ C2×C4 ▷ C2 ▷ C1 | |
1657 conjugacy classes of subgroups.
| minimal degree | μ(G) = 20 |
| transitive degree | μt(G) = 64 |
A minimal faithful permutation representation — 5 generators on 20 points:
(2,4)(5,6)(7,14)(8,12)(9,18)(10,13)(11,17)(15,20)(16,19);(5,7,9,17,10,15,8,16)(6,11,12,14,13,19,18,20);(1,2,3,4);(7,15)(11,19)(14,20)(16,17);(5,8,10,9)(6,12,13,18)(7,16,15,17)(11,14,19,20)Polycyclic presentation:
2^8|b^2=f,c^2=g,e^2=h,f^2=h,b^a=bf,c^a=cg,f^a=fh,d^b=dh64 conjugacy classes — view the full character table.
| Frattini subgroup of | #72339868, #72340178 |
| maximal subgroup of | #111360, #111363, #111437, … |
| maximal normal subgroup of | #111360, #111363, #111437, … |
| maximal quotient of | #6357104, #6357109, #6357113, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 53627);