Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #23860 |
| automorphism | Aut(G) = C211×D4 (order 16384) · Inn(G) = C22×D4 · Out(G) = C29 |
| homology | Abelianization (H1) = C24 · Schur multiplier (H2) = C24 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle, prime radical | C23 | C22×D4 |
| commutator, Frattini, cosocle | C22×C4 | C24 |
| LCS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ C4×C4⋊C4 ◁ G | |
| LECS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
413 conjugacy classes of subgroups.
| minimal degree | μ(G) = 28 |
| transitive degree | μt(G) = 256 |
A minimal faithful permutation representation — 4 generators on 28 points:
(1,2,3,4)(5,6)(7,10)(8,9)(11,12)(15,21)(18,27)(22,28)(23,26);(2,4)(13,14,16,19)(15,22,21,28)(17,25,24,20)(18,26,27,23);(6,9)(10,12)(13,15,16,21)(14,18,19,27)(17,26,24,23)(20,28,25,22);(2,4)(5,7,8,11)(6,10,9,12)(15,21)(18,27)(22,28)(23,26)Polycyclic presentation:
2^8|a^2=e,b^2=h,c^2=h,d^2=fh,g^2=h,b^a=be,c^a=cf,d^a=de,c^b=cg,g^b=gh,d^c=dh,g^c=gh46 conjugacy classes — view the full character table.
| maximal subgroup of | C2×#26607, #6439414, #6439426, … |
| maximal normal subgroup of | C2×#26607, #6439414, #6439426, … |
| maximal quotient of | #310275, #310276, #310279, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 19595);