Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 4 |
| isoclinism | isoclinic class of #11855 |
| automorphism | Aut(G) order 8192 |
| homology | Abelianization (H1) = C22×C4 · Schur multiplier (H2) = C22 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle | C22 | C2×#102 |
| commutator | C2×C8 | C22×C4 |
| Frattini, cosocle | C4×C8 | C23 |
| prime radical | C23 | #102 |
| LCS | G ▷ C2×C8 ▷ C2×C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C22 ◁ C2×C42 ◁ C2×C4×C8 ◁ G | |
| LECS | G ▷ C4×C8 ▷ C2×C4 ▷ C2 ▷ C1 | |
145 conjugacy classes of subgroups; only the 61 normal subgroups are shown.
This group has 145 conjugacy classes of subgroups — too many to draw. Only its 61 normal subgroups are shown.
Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.
| minimal degree | μ(G) = 48 |
| transitive degree | μt(G) = 128 |
A minimal faithful permutation representation — 3 generators on 48 points:
(1,2,4,8,5,7,13,15)(3,9,10,16,11,6,12,14)(17,18,21,26,22,27,36,44,23,28,37,45,35,43,20,25)(19,29,31,41,32,42,30,46,33,47,34,24,38,39,48,40);(1,3,5,11)(2,6,7,9)(4,12,13,10)(8,16,15,14)(17,19)(18,24)(20,34)(21,30)(22,38)(23,33)(25,42)(26,29)(27,46)(28,41)(31,36)(32,35)(37,48)(39,44)(40,43)(45,47);(2,7)(6,9)(8,15)(14,16)Polycyclic presentation:
2^8|a^2=e,b^2=f,d^2=gh,e^2=fg,g^2=h,b^a=bd,c^a=cf,d^a=df,d^b=dg,e^b=efg,g^b=gh52 conjugacy classes — view the full character table.
| maximal subgroup of | #131084, #131085, #131102, … |
| maximal normal subgroup of | #131084, #131085, #131102, … |
| maximal quotient of | #124272, #124273, #124473, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 4955);