Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #24378 |
| automorphism | Aut(G) order 65536 |
| homology | Abelianization (H1) = C24 · Schur multiplier (H2) = C23×C4 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle | C23 | C22×D4 |
| commutator, Frattini, cosocle | C22×C4 | C24 |
| prime radical | C2×#127 | C22 |
| LCS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ C43 ◁ G | |
| LECS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
441 conjugacy classes of subgroups; only the 131 normal subgroups are shown.
This group has 441 conjugacy classes of subgroups — too many to draw. Only its 131 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) = 128 |
A minimal faithful permutation representation — 4 generators on 28 points:
(5,6,9,12)(7,11,8,10)(13,14,16,18)(15,21,22,28)(17,25,23,20)(19,27,26,24);(1,2,3,4)(5,7,9,8)(6,10,12,11)(14,18)(15,22)(20,25)(24,27);(2,4)(5,7,9,8)(6,11,12,10)(13,15,23,27,16,22,17,24)(14,19,25,28,18,26,20,21);(5,8,9,7)(6,11,12,10)(14,18)(19,26)(20,25)(21,28)Polycyclic presentation:
2^8|a^2=e,b^2=eg,c^2=ef,d^2=eh,f^2=h,b^a=be,c^a=cf,d^a=de,f^a=fh,c^b=cg58 conjugacy classes — view the full character table.
| maximal subgroup of | #101778, #101786, #168871, … |
| maximal normal subgroup of | #101778, #101786, #168871, … |
| maximal quotient of | #325560, #325565, #325571, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 21739);