Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #24269 |
| 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 | |
377 conjugacy classes of subgroups.
| minimal degree | μ(G) = 28 |
| transitive degree | μt(G) = 256 |
A minimal faithful permutation representation — 4 generators on 28 points:
(5,6,8,9)(7,11,12,10)(13,14)(15,20)(16,25)(17,27)(18,22)(19,23)(21,26)(24,28);(1,2)(3,4)(6,9)(10,11)(13,15,17,23,18,24,26,16)(14,19,21,20,22,25,27,28);(2,4)(13,16,17,15,18,23,26,24)(14,20,21,25,22,28,27,19);(5,7,8,12)(6,10,9,11)(13,16,26,24,18,23,17,15)(14,20,27,19,22,28,21,25)Polycyclic presentation:
2^8|a^2=efh,b^2=f,c^2=f,d^2=eh,e^2=h,f^2=h,b^a=be,c^a=cf,d^a=de,e^a=eh,f^a=fh,c^b=cg,d^c=dh46 conjugacy classes — view the full character table.
| maximal subgroup of | C2×#26489, #6444657, #6444672, … |
| maximal normal subgroup of | C2×#26489, #6444657, #6444672, … |
| maximal quotient of | #308988, #308992, #308996, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 19477);