Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #99 |
| automorphism | Aut(G) = #72286249 (order 2048) · Inn(G) = C22⋊C4 · Out(G) = C2×#525 |
| homology | Abelianization (H1) = C4×C16 · Schur multiplier (H2) = C22 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center | C2×C8 | C22⋊C4 |
| commutator | C22 | C4×C16 |
| Frattini, cosocle | C22×C16 | C22 |
| socle | C22 | C22⋊C16 |
| prime radical | C23 | C2×C16 |
| LCS | G ▷ C22 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C2×C8 ◁ C22×C16 ◁ G | |
| LECS | G ▷ C22×C16 ▷ C8 ▷ C4 ▷ C2 ▷ C1 | |
91 conjugacy classes of subgroups.
| minimal degree | μ(G) = 36 |
| transitive degree | μt(G) = 128 |
A minimal faithful permutation representation — 2 generators on 36 points:
(5,6,7,12,8,13,16,24,9,14,17,25,18,26,29,34,10,11,15,21,19,22,27,31,20,23,28,32,30,33,35,36);(1,2,3,4)(6,11)(7,15)(13,22)(14,23)(16,27)(17,28)(26,33)(29,35)Polycyclic presentation:
2^8|a^2=d,b^2=e,d^2=f,f^2=g,g^2=h,b^a=bc,c^a=ch,d^b=dh88 conjugacy classes — view the full character table.
| maximal subgroup of | #93887, #93891, #93924, … |
| maximal normal subgroup of | #93887, #93891, #93924, … |
| maximal quotient of | #93992, #93999, #94006, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 456);