Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #19420 |
| automorphism | Aut(G) order 8192 |
| homology | Abelianization (H1) = C24 · Schur multiplier (H2) = C24 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle | C22 | C2×#121 |
| commutator, Frattini, cosocle | C42 | C24 |
| prime radical | #532 | C22 |
| LCS | G ▷ C42 ▷ C22 ▷ C1 | |
| UCS | C1 ◁ C22 ◁ C2×C42 ◁ G | |
| LECS | G ▷ C42 ▷ C22 ▷ C1 | |
289 conjugacy classes of subgroups; only the 105 normal subgroups are shown.
This group has 289 conjugacy classes of subgroups — too many to draw. Only its 105 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)(3,10)(4,8)(5,14)(6,9)(7,13)(11,16)(12,15)(17,18,23,26)(19,21,25,22)(20,27,30,28)(24,31,32,29);(1,3,5,13,6,11,4,12)(2,7,8,10,9,15,14,16)(17,19,21,26,23,25,22,18)(20,28,29,24,30,27,31,32);(3,11)(7,15)(10,16)(12,13)(17,20,23,30)(18,24,26,32)(19,27,25,28)(21,29,22,31);(1,4,6,5)(2,8,9,14)(3,12,11,13)(7,10,15,16)(17,21,23,22)(18,25,26,19)(20,29,30,31)(24,28,32,27)Polycyclic presentation:
2^8|a^2=h,b^2=e,c^2=h,d^2=g,e^2=g,f^2=h,b^a=be,c^a=cf,e^a=eg,f^a=fh,c^b=cg,d^b=dh,f^c=fh37 conjugacy classes — view the full character table.
| maximal subgroup of | C2×#19442, #6354497, #6354516, … |
| maximal normal subgroup of | C2×#19442, #6354497, #6354516, … |
| maximal quotient of | #189146, #197872, #197952, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 12430);