Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 2 |
| isoclinism | isoclinic class of #35680 |
| automorphism | Aut(G) order 131072 |
| homology | Abelianization (H1) = C25 · Schur multiplier (H2) = C28 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, commutator, Frattini, socle, cosocle | C23 | C25 |
| prime radical | #2408 | C2 |
| LCS | G ▷ C23 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ G | |
| LECS | G ▷ C23 ▷ C1 | |
1273 conjugacy classes of subgroups.
| minimal degree | μ(G) = 20 |
| transitive degree | μt(G) = 64 |
A minimal faithful permutation representation — 5 generators on 20 points:
(1,2,3,4)(5,6,10,9)(7,12,8,11)(15,19)(18,20);(1,2)(3,4)(5,6,10,9)(7,12,8,11)(13,14,17,16)(15,18,19,20);(1,2)(3,4)(5,7,10,8)(6,11,9,12)(13,15,17,19)(14,18,16,20);(5,8,10,7)(6,11,9,12)(13,14,17,16)(15,18,19,20);(5,9,10,6)(7,12,8,11)(13,16,17,14)(15,20,19,18)Polycyclic presentation:
2^8|a^2=fh,b^2=fg,c^2=fg,d^2=fg,e^2=fg,b^a=bf,c^a=cg,c^b=ch,e^d=eh64 conjugacy classes — view the full character table.
| maximal subgroup of | #132215, #248696, #248697, … |
| maximal normal subgroup of | #132215, #248696, #248697, … |
| maximal quotient of | #517829, #517830, #517837, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 29063);