Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 2 |
| isoclinism | isoclinic class of #37644 |
| automorphism | Aut(G) = C215 (order 32768) · Inn(G) = C25 · Out(G) = C210 |
| homology | Abelianization (H1) = C25 · Schur multiplier (H2) = C28 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, commutator, Frattini, socle, cosocle | C23 | C25 |
| LCS | G ▷ C23 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ G | |
| LECS | G ▷ C23 ▷ C1 | |
1407 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)(7,11)(8,10)(9,12);(5,6,8,10)(7,9,12,11)(14,17)(15,19);(1,2,3,4)(13,14,16,17)(15,18,19,20);(5,7)(6,9)(8,12)(10,11);(5,6)(7,9)(8,10)(11,12)(13,15)(14,18)(16,19)(17,20)Polycyclic presentation:
2^8|b^2=f,c^2=gh,b^a=bf,c^a=cg,d^a=df,c^b=ch,e^b=efh58 conjugacy classes — view the full character table.
| maximal subgroup of | C2×#38077, #7635455, #7635482, … |
| maximal normal subgroup of | C2×#38077, #7635455, #7635482, … |
| maximal quotient of | #521696, #522313, #522816, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 31065);