Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of D82 |
| automorphism | Aut(G) order 8192 |
| 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 | C2×D4 | C2×D4 |
| LCS | G ▷ C42 ▷ C22 ▷ C1 | |
| UCS | C1 ◁ C22 ◁ C42 ◁ G | |
| LECS | G ▷ C42 ▷ C22 ▷ C1 | |
284 conjugacy classes of subgroups; only the 103 normal subgroups are shown.
This group has 284 conjugacy classes of subgroups — too many to draw. Only its 103 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:
(2,7)(3,5)(4,11)(8,12)(9,13)(15,16)(17,18,22,25)(19,23,21,29)(20,27,28,31)(24,30,32,26);(1,2)(3,7)(4,12)(5,13)(6,9)(8,10)(11,15)(14,16)(17,19,22,21)(18,23,25,29)(20,26,28,30)(24,31,32,27);(1,3,6,5)(2,7,9,13)(4,10,11,14)(8,15,16,12)(17,20,22,28)(18,24,25,32)(19,26,21,30)(23,31,29,27);(1,4,6,11)(2,8,9,16)(3,10,5,14)(7,15,13,12)Polycyclic presentation:
2^8|a^2=h,b^2=h,c^2=gh,d^2=g,e^2=g,f^2=h,b^a=be,c^a=cf,d^a=dg,e^a=eg,f^a=fh,d^b=de,e^b=eg,f^c=fh,e^d=eg49 conjugacy classes — view the full character table.
| maximal subgroup of | #491971, #491979, #491986, … |
| maximal normal subgroup of | #491971, #491979, #491986, … |
| maximal quotient of | #220826, #220833, #220838, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 13002);