Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 2 |
| isoclinism | isoclinic class of #34980 |
| automorphism | Aut(G) order 524288 |
| homology | Abelianization (H1) = C25 · Schur multiplier (H2) = C27×C4 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, commutator, Frattini, socle, cosocle | C23 | C25 |
| prime radical | C23×D4 | C22 |
| LCS | G ▷ C23 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ G | |
| LECS | G ▷ C23 ▷ C1 | |
1405 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)(5,6,10,8)(7,9,12,11)(13,14,16,18)(15,19,20,17);(1,2)(3,4)(6,8)(7,12)(13,14)(15,17)(16,18)(19,20);(5,7,10,12)(6,11,8,9)(13,15,16,20)(14,17,18,19);(5,8,10,6)(7,9,12,11);(5,9)(6,7)(8,12)(10,11)Polycyclic presentation:
2^8|a^2=g,c^2=g,d^2=h,b^a=bf,c^a=cg,e^a=eh,c^b=ch,d^b=dh64 conjugacy classes — view the full character table.
| maximal subgroup of | #111649, #111658, #111676, … |
| maximal normal subgroup of | #111649, #111658, #111676, … |
| maximal quotient of | #516435, #516459, #516591, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 28160);