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) = C25 |
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 | C22×C22⋊C4 |
| prime radical | #3475 | C2 |
| LCS | G ▷ C2×C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C2×C4 ◁ C2×C4×D4 ◁ G | |
| LECS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
574 conjugacy classes of subgroups.
| minimal degree | μ(G) = 24 |
| transitive degree | μt(G) = 32 |
A minimal faithful permutation representation — 4 generators on 24 points:
(2,5)(6,8)(9,10,13,16,14,17,12,21)(11,18,20,15,19,24,22,23);(1,2)(3,6)(4,5)(7,8)(11,19)(15,23)(18,24)(20,22);(1,3,4,7)(2,6,5,8)(9,11)(10,15)(12,22)(13,20)(14,19)(16,24)(17,23)(18,21);(2,5)(6,8)Polycyclic presentation:
2^8|a^2=g,c^2=e,f^2=h,g^2=h,b^a=be,c^a=cf,f^a=fh,c^b=ch,d^b=de,f^c=fh58 conjugacy classes — view the full character table.
| maximal subgroup of | C2×#22506, #6379335, #6379336, … |
| maximal normal subgroup of | C2×#22506, #6379335, #6379336, … |
| maximal quotient of | #223122, #223123, #223124, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 15494);