Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #23848 |
| automorphism | Aut(G) order 65536 |
| homology | Abelianization (H1) = C24 · Schur multiplier (H2) = C24×C4 |
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 | |
541 conjugacy classes of subgroups; only the 147 normal subgroups are shown.
This group has 541 conjugacy classes of subgroups — too many to draw. Only its 147 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:
(2,4)(5,6)(7,11)(8,9)(10,12)(13,14,19,24)(15,20,26,21)(16,27,25,28)(17,23,18,22);(6,9)(10,11)(13,15,19,26)(14,20,24,21)(16,17,25,18)(22,27,23,28);(1,2,3,4)(13,16,18,15,19,25,17,26)(14,21,23,28,24,20,22,27);(5,7,8,12)(6,10,9,11)Polycyclic presentation:
2^8|a^2=h,b^2=h,c^2=fh,d^2=e,f^2=h,g^2=h,b^a=be,c^a=cf,d^a=de,f^a=fh,g^a=gh,c^b=cg,f^b=fh,g^b=gh52 conjugacy classes — view the full character table.
| maximal subgroup of | #138905, #250946, #251026, … |
| maximal normal subgroup of | #138905, #250946, #251026, … |
| maximal quotient of | #293882, #293891, #293900, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 18622);