Finite Group DatabasebetaFinite Group Databasebeta| order | 640 |
| automorphism | ? |
| homology | Abelianization (H1) = C24 · Schur multiplier (H2) = C24 |
No aliases for this group.
| Fitting | C4×C5×C4⋊C4 ⋊ C2 |
| Sylow | C5 ⋊ #2395 |
560 conjugacy classes of subgroups.
| transitive degree | μt(G) = 320 |
Polycyclic presentation:
2^7,5|b^2=f,d^2=e,b^a=be,c^a=cf,h^a=h^4,c^b=cg,h^c=h^4124 conjugacy classes — view the full character table.
| maximal subgroup of | #12106332, #12106337, #12106343, … |
| maximal normal subgroup of | #12106332, #12106337, #12106343, … |
| maximal quotient of | #12020980, #12021002, #12021004, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(640, 7590);