Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 2 |
| isoclinism | isoclinic class of #2403 |
| automorphism | Aut(G) order 131072 |
| homology | Abelianization (H1) = C23×C4 · Schur multiplier (H2) = C43 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, Frattini, socle, cosocle | C24 | C24 |
| commutator | C23 | C23×C4 |
| prime radical | C25 | C23 |
| LCS | G ▷ C23 ▷ C1 | |
| UCS | C1 ◁ C24 ◁ G | |
| LECS | G ▷ C24 ▷ C1 | |
677 conjugacy classes of subgroups; only the 211 normal subgroups are shown.
This group has 677 conjugacy classes of subgroups — too many to draw. Only its 211 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:
(1,2,4,3)(13,14,17,15)(16,19,20,18)(22,25)(23,27);(6,9)(10,12)(14,15)(18,19)(21,22,24,25)(23,26,27,28);(5,6)(7,10)(8,9)(11,12)(13,15,17,14)(16,19,20,18)(21,22)(23,26)(24,25)(27,28);(1,3,4,2)(5,7,8,11)(6,10,9,12)(13,16,17,20)(14,18,15,19)(21,23,24,27)(22,26,25,28)Polycyclic presentation:
2^8|a^2=h,b^2=f,c^2=ef,d^2=efgh,b^a=be,c^a=cf,d^a=de,c^b=cg76 conjugacy classes — view the full character table.
| maximal subgroup of | #140025, C2×#14253, #514783, … |
| maximal normal subgroup of | #140025, C2×#14253, #514783, … |
| maximal quotient of | #153823, #153824, #153825, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 7241);