Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 2 |
| isoclinism | isoclinic class of #2403 |
| automorphism | Aut(G) order 1048576 |
| homology | Abelianization (H1) = C23×C4 · Schur multiplier (H2) = C24×C42 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, Frattini, socle, prime radical, cosocle | C24 | C24 |
| commutator | C23 | C23×C4 |
| LCS | G ▷ C23 ▷ C1 | |
| UCS | C1 ◁ C24 ◁ G | |
| LECS | G ▷ C24 ▷ C1 | |
955 conjugacy classes of subgroups; only the 343 normal subgroups are shown.
This group has 955 conjugacy classes of subgroups — too many to draw. Only its 343 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) = 256 |
A minimal faithful permutation representation — 4 generators on 20 points:
(2,4)(5,6,7,8)(14,16)(15,19);(9,10,11,12)(13,14,17,16)(15,18,19,20);(1,2,3,4)(5,6)(7,8)(9,10)(11,12)(13,15)(14,18)(16,20)(17,19);(13,16,17,14)(15,20,19,18)Polycyclic presentation:
2^8|a^2=h,b^2=eg,c^2=efh,d^2=e,b^a=be,c^a=cf,d^a=de,c^b=cg76 conjugacy classes — view the full character table.
| maximal subgroup of | #110236, #110237, #110565, … |
| maximal normal subgroup of | #110236, #110237, #110565, … |
| maximal quotient of | #153777, #153781, #153862, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 7143);