Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #24384 |
| 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×#447 | C2 |
| LCS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ C22×C42 ◁ G | |
| LECS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
662 conjugacy classes of subgroups; only the 139 normal subgroups are shown.
This group has 662 conjugacy classes of subgroups — too many to draw. Only its 139 normal subgroups are shown.
Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.
| minimal degree | μ(G) = 20 |
| transitive degree | μt(G) = 64 |
A minimal faithful permutation representation — 4 generators on 20 points:
(5,6)(7,11)(8,10)(9,12)(13,14,16,19,15,17,20,18);(1,2,3,4)(5,7,8,12)(6,9,10,11)(14,17)(18,19);(2,4)(14,18)(16,20)(17,19);(6,10)(9,11)Polycyclic presentation:
2^8|a^2=f,b^2=egh,f^2=h,b^a=be,c^a=cf,d^a=deh,c^b=cg,f^c=fh46 conjugacy classes — view the full character table.
| maximal subgroup of | #294380, #294382, #294392, … |
| maximal normal subgroup of | #294380, #294382, #294392, … |
| maximal quotient of | #319095, #319096, #319107, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 21300);