Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 2 |
| isoclinism | isoclinic class of #534 |
| automorphism | Aut(G) order 65536 |
| homology | Abelianization (H1) = C22×C42 · Schur multiplier (H2) = C23×C4 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, Frattini, cosocle | C22×C4 | C24 |
| commutator | C22 | C22×C42 |
| socle | C23 | C23×C4 |
| prime radical | C22×D4 | C2×C4 |
| LCS | G ▷ C22 ▷ C1 | |
| UCS | C1 ◁ C22×C4 ◁ G | |
| LECS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
543 conjugacy classes of subgroups; only the 295 normal subgroups are shown.
This group has 543 conjugacy classes of subgroups — too many to draw. Only its 295 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) = 128 |
A minimal faithful permutation representation — 4 generators on 20 points:
(5,6)(7,11)(8,10)(9,12)(13,14,16,15,17,18,20,19);(1,2,3,4)(5,7)(6,9)(8,12)(10,11);(7,12)(9,11)(13,15,16,18,17,19,20,14);(6,10)(9,11)(14,18)(15,19)Polycyclic presentation:
2^8|a^2=f,b^2=g,c^2=f,f^2=h,b^a=be,c^a=ch,d^a=deh,c^b=ce,d^c=dh88 conjugacy classes — view the full character table.
| maximal subgroup of | #99987, #99989, #99991, … |
| maximal normal subgroup of | #99987, #99989, #99991, … |
| maximal quotient of | #184584, #184587, #184590, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 13556);