Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 2 |
| isoclinism | isoclinic class of #58990 |
| automorphism | Aut(G) order 262144 |
| 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 | C2×#555 | C2 |
| LCS | G ▷ C23 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ G | |
| LECS | G ▷ C23 ▷ C1 | |
1122 conjugacy classes of subgroups.
| minimal degree | μ(G) = 20 |
| transitive degree | μt(G) = 128 |
A minimal faithful permutation representation — 5 generators on 20 points:
(2,3)(5,6,9,7)(8,11,12,10)(14,19)(17,20);(2,3)(6,7)(10,11)(13,14)(15,17)(16,20)(18,19);(1,2,4,3)(13,15,18,16)(14,17,19,20);(1,3,4,2)(5,7,9,6)(8,11,12,10)(13,16,18,15)(14,20,19,17);(5,8,9,12)(6,10,7,11)(13,17,18,20)(14,15,19,16)Polycyclic presentation:
2^8|a^2=gh,c^2=fh,d^2=fg,e^2=f,b^a=bf,c^a=cg,d^a=dg,e^a=ef,c^b=cg,d^b=dh64 conjugacy classes — view the full character table.
| maximal subgroup of | #98647, #133555, #262408, … |
| maximal normal subgroup of | #98647, #133555, #262408, … |
| maximal quotient of | #531798, #532060, #532489, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 52647);