Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #20158 |
| automorphism | Aut(G) order 4096 |
| homology | Abelianization (H1) = C24 · Schur multiplier (H2) = C24 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle | C22 | D42 |
| commutator, Frattini, cosocle | C42 | C24 |
| prime radical | #459 | C22 |
| LCS | G ▷ C42 ▷ C22 ▷ C1 | |
| UCS | C1 ◁ C22 ◁ C42 ◁ G | |
| LECS | G ▷ C42 ▷ C22 ▷ C1 | |
292 conjugacy classes of subgroups; only the 99 normal subgroups are shown.
This group has 292 conjugacy classes of subgroups — too many to draw. Only its 99 normal subgroups are shown.
Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.
| minimal degree | μ(G) = 32 |
| transitive degree | μt(G) = 128 |
A minimal faithful permutation representation — 4 generators on 32 points:
(1,2,7,5)(3,10,13,16)(4,9,6,14)(8,11,15,12)(17,18)(19,23)(20,27)(21,30)(22,25)(24,26)(28,32)(29,31);(1,3,7,13)(2,8,5,15)(4,12,6,11)(9,16,14,10)(17,19,22,21)(18,23,25,30)(20,28,29,26)(24,27,32,31);(1,4,7,6)(2,9,5,14)(3,11,13,12)(8,10,15,16)(17,20)(18,24)(19,26)(21,28)(22,29)(23,31)(25,32)(27,30);(1,5,7,2)(3,10,13,16)(4,14,6,9)(8,11,15,12)(17,19,22,21)(18,23,25,30)(20,26,29,28)(24,31,32,27)Polycyclic presentation:
2^8|a^2=g,b^2=gh,c^2=g,d^2=gh,e^2=g,f^2=h,b^a=be,c^a=cf,e^a=eg,f^a=fh,c^b=cgh,d^b=de,e^b=eg,f^c=fh,e^d=eg34 conjugacy classes — view the full character table.
| maximal subgroup of | C2×#20269, #6359626, #6359652, … |
| maximal normal subgroup of | C2×#20269, #6359626, #6359652, … |
| maximal quotient of | #220892, #220997, #222427, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 13257);