Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 2 |
| isoclinism | isoclinic class of #120 |
| automorphism | Aut(G) order 16384 |
| homology | Abelianization (H1) = C2×C4×C8 · Schur multiplier (H2) = C2×C8 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, Frattini, cosocle | C2×C42 | C23 |
| commutator | C22 | C2×C4×C8 |
| socle, prime radical | C23 | C2×C42 |
| LCS | G ▷ C22 ▷ C1 | |
| UCS | C1 ◁ C2×C42 ◁ G | |
| LECS | G ▷ C2×C42 ▷ C22 ▷ C1 | |
247 conjugacy classes of subgroups.
| minimal degree | μ(G) = 20 |
| transitive degree | μt(G) = 256 |
A minimal faithful permutation representation — 3 generators on 20 points:
(1,2,3,4)(5,6,8,7,9,10,12,11);(2,4)(13,14,15,17,16,18,19,20);(5,7,8,10,9,11,12,6)Polycyclic presentation:
2^8|a^2=e,b^2=f,c^2=de,e^2=g,f^2=h,b^a=bd,c^a=cg112 conjugacy classes — view the full character table.
| maximal subgroup of | #93354, #134394, #140863, … |
| maximal normal subgroup of | #93354, #134394, #140863, … |
| maximal quotient of | #96896, #96898, #96899, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 1250);