Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #3264 |
| automorphism | Aut(G) = C28×D4 (order 2048) · Inn(G) = C22×D4 · Out(G) = C26 |
| homology | Abelianization (H1) = C23×C4 · Schur multiplier (H2) = C24 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center | C2×C4 | C22×D4 |
| commutator | C2×C4 | C23×C4 |
| Frattini, cosocle | C22×C4 | C24 |
| socle | C22 | C2×C4×D4 |
| prime radical | #3054 | C2 |
| LCS | G ▷ C2×C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C2×C4 ◁ C2×C22⋊C8 ◁ G | |
| LECS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
401 conjugacy classes of subgroups.
| minimal degree | μ(G) = 24 |
| transitive degree | μt(G) = 64 |
A minimal faithful permutation representation — 4 generators on 24 points:
(2,5)(6,8)(9,10,14,19,13,17,23,18)(11,16,21,24,20,15,12,22);(1,2)(3,6)(4,5)(7,8)(9,11,14,21,13,20,23,12)(10,15,19,22,17,16,18,24);(1,3,4,7)(2,6,5,8)(9,12,23,20,13,21,14,11)(10,16,19,24,17,15,18,22);(2,5)(6,8)(11,20)(12,21)(15,16)(22,24)Polycyclic presentation:
2^8|a^2=g,b^2=g,c^2=ef,f^2=h,g^2=h,b^a=be,c^a=cf,f^a=fh,d^b=de,d^c=dh58 conjugacy classes — view the full character table.
| maximal subgroup of | C2×#23148, #6382633, #6382634, … |
| maximal normal subgroup of | C2×#23148, #6382633, #6382634, … |
| maximal quotient of | #231030, #231031, #231032, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 16136);