Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #24269 |
| automorphism | Aut(G) order 65536 |
| 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 ◁ C2×C4×Q8 ◁ G | |
| LECS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
381 conjugacy classes of subgroups; only the 143 normal subgroups are shown.
This group has 381 conjugacy classes of subgroups — too many to draw. Only its 143 normal subgroups are shown.
Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.
| minimal degree | μ(G) = 28 |
| transitive degree | μt(G) = 256 |
A minimal faithful permutation representation — 4 generators on 28 points:
(1,2)(3,4)(5,6,9,12)(7,11,8,10)(13,14,17,20)(15,21,23,18)(16,19,25,26)(22,24,28,27);(5,7,9,8)(6,10,12,11)(13,15,14,18,17,23,20,21)(16,24,26,28,25,27,19,22);(2,4)(13,16,17,25)(14,19,20,26)(15,22,23,28)(18,27,21,24);(5,8,9,7)(6,11,12,10)Polycyclic presentation:
2^8|a^2=e,b^2=egh,c^2=h,d^2=eh,g^2=h,b^a=be,c^a=cf,d^a=deh,c^b=cg,g^c=gh46 conjugacy classes — view the full character table.
| maximal subgroup of | #143728, #143776, #145189, … |
| maximal normal subgroup of | #143728, #143776, #145189, … |
| maximal quotient of | #318816, #318817, #318818, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 21262);