Finite Group DatabasebetaFinite Group Databasebeta| order | 640 |
| automorphism | ? |
| homology | Abelianization (H1) = C23×C4 · Schur multiplier (H2) = C24×C4 |
No aliases for this group.
| Fitting | C4×C5×C22⋊C4 ⋊ C2 |
| Sylow | C5 ⋊ #2342 |
792 conjugacy classes of subgroups.
| transitive degree | μt(G) = 160 |
Polycyclic presentation:
2^7,5|a^2=g,b^2=f,b^a=be,c^a=cf,h^a=h^4,d^b=de,h^b=h^4,h^d=h^4130 conjugacy classes — view the full character table.
| maximal subgroup of | #12114632, #12114636, #12115440, … |
| maximal normal subgroup of | #12114632, #12114636, #12115440, … |
| maximal quotient of | C22⋊C4×#685, #12020705, #12020733, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(640, 7388);