Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 2 |
| isoclinism | isoclinic class of #392 |
| automorphism | Aut(G) order 196608 |
| homology | Abelianization (H1) = C2×C42 · Schur multiplier (H2) = C22×C4 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, Frattini, cosocle | C2×C42 | C23 |
| commutator, socle | C23 | C2×C42 |
| prime radical | C24 | C42 |
| LCS | G ▷ C23 ▷ C1 | |
| UCS | C1 ◁ C2×C42 ◁ G | |
| LECS | G ▷ C2×C42 ▷ C22 ▷ C1 | |
401 conjugacy classes of subgroups.
| minimal degree | μ(G) = 20 |
| transitive degree | μt(G) = 128 |
A minimal faithful permutation representation — 3 generators on 20 points:
(1,2)(3,4)(5,6,7,10,8,9,11,12);(2,4)(13,14,15,18,16,17,19,20);(6,9)(10,12)(14,17)(18,20)Polycyclic presentation:
2^8|a^2=e,b^2=f,e^2=g,f^2=h,b^a=bd,c^a=cg,c^b=ch88 conjugacy classes — view the full character table.
| Fitting subgroup of | #7852⋊C3 |
| maximal subgroup of | #93400, #93504, #93506, … |
| maximal normal subgroup of | #93400, #93504, #93506, … |
| maximal quotient of | #94876, #94877, #94908, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 840);