Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 2 |
| isoclinism | isoclinic class of #34980 |
| automorphism | Aut(G) order 262144 |
| 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 | C2×#537 | C2 |
| LCS | G ▷ C23 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ G | |
| LECS | G ▷ C23 ▷ C1 | |
1221 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)(7,12)(8,9)(10,11)(15,19)(17,20);(1,2,4,3)(6,11)(7,8)(13,14,16,18)(15,17,19,20);(1,3,4,2)(5,7,10,8)(6,12,11,9)(13,15)(14,17)(16,19)(18,20);(5,8,10,7)(6,9,11,12);(5,9)(6,7)(8,11)(10,12)Polycyclic presentation:
2^8|b^2=g,c^2=f,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 | #96972, #97111, #261060, … |
| maximal normal subgroup of | #96972, #97111, #261060, … |
| maximal quotient of | #516393, #516613, #516618, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 28146);