Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #1284 |
| automorphism | Aut(G) order 4096 |
| homology | Abelianization (H1) = C4×C8 · Schur multiplier (H2) = C22 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center | C2×C4 | #95 |
| commutator | C2×C4 | C4×C8 |
| Frattini, cosocle | C2×C4×C8 | C22 |
| socle | C22 | #336 |
| prime radical | C23 | C22⋊C8 |
| LCS | G ▷ C2×C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C2×C4 ◁ C2×C4×C8 ◁ G | |
| LECS | G ▷ C2×C4×C8 ▷ C2×C4 ▷ C2 ▷ C1 | |
133 conjugacy classes of subgroups.
| minimal degree | μ(G) = 24 |
| transitive degree | μt(G) = 64 |
A minimal faithful permutation representation — 2 generators on 24 points:
(1,2)(3,5)(4,7)(6,8)(9,10,11,15,13,16,18,22,12,14,17,20,19,21,23,24);(2,5,7,6)(10,14)(11,17)(16,21)(18,23)Polycyclic presentation:
2^8|a^2=d,b^2=e,c^2=fh,d^2=g,g^2=h,b^a=bc,c^a=cf,e^a=efh,d^b=dh64 conjugacy classes — view the full character table.
| maximal subgroup of | #92833, #92834, #92855, … |
| maximal normal subgroup of | #92833, #92834, #92855, … |
| maximal quotient of | #93258, #93288, #93315, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 137);