Finite Group DatabasebetaFinite Group Databasebeta| order | 640 |
| automorphism | ? |
| homology | Abelianization (H1) = C24 · Schur multiplier (H2) = C24 |
No aliases for this group.
| Sylow | C5 ⋊ #3367 |
372 conjugacy classes of subgroups.
| transitive degree | μt(G) = 320 |
Polycyclic presentation:
2^7,5|b^2=eg,d^2=e,f^2=g,b^a=be,c^a=cf,f^a=fg,c^b=cg,d^b=de,f^c=fg,h^d=h^467 conjugacy classes — view the full character table.
| maximal subgroup of | D5×#3367, C2×#10612249, #12979106, … |
| maximal normal subgroup of | D5×#3367, C2×#10612249, #12979106, … |
| maximal quotient of | #12115931, #12116128, #12118280, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(640, 14331);