Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 2 |
| isoclinism | isoclinic class of #58990 |
| automorphism | Aut(G) order 65536 |
| 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×#121 | C22 |
| LCS | G ▷ C23 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ G | |
| LECS | G ▷ C23 ▷ C1 | |
1079 conjugacy classes of subgroups.
| minimal degree | μ(G) = 20 |
| transitive degree | μt(G) = 128 |
A minimal faithful permutation representation — 5 generators on 20 points:
(5,6,10,8)(7,12,11,9)(13,14)(15,18)(16,17)(19,20);(2,4)(5,7)(6,9)(8,12)(10,11)(13,15,17,20)(14,18,16,19);(5,8,10,6)(7,12,11,9)(13,16,17,14)(15,18,20,19);(1,2)(3,4)(13,15)(14,19)(16,18)(17,20);(5,9,10,12)(6,11,8,7)Polycyclic presentation:
2^8|a^2=f,b^2=g,c^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 | #7001538, #7001542, #7001546, … |
| maximal normal subgroup of | #7001538, #7001542, #7001546, … |
| maximal quotient of | #531675, #531744, #531953, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 52057);