Finite Group DatabasebetaFinite Group Databasebeta| order | 640 |
| automorphism | ? |
| homology | Abelianization (H1) = C23×C4 · Schur multiplier (H2) = C24×C4 |
No aliases for this group.
| Fitting | C2×C42×C5 ⋊ C4 |
| Sylow | C5 ⋊ #2285 |
656 conjugacy classes of subgroups.
| transitive degree | μt(G) = 160 |
Polycyclic presentation:
2^7,5|a^2=g,c^2=f,d^2=e,b^a=be,c^a=cf,h^a=h^2,h^g=h^488 conjugacy classes — view the full character table.
| maximal subgroup of | #13015473, #13015474, #13015485, … |
| maximal normal subgroup of | #13015473, #13015474, #13015485, … |
| maximal quotient of | #13027905, #13027907, C4×#65765, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(640, 19130);