Finite Group DatabasebetaFinite Group Databasebeta| order | 640 |
| automorphism | ? |
| homology | Abelianization (H1) = C24 · Schur multiplier (H2) = C25 |
No aliases for this group.
| Fitting | C5×D4×Q8 ⋊ C2 |
| Sylow | C5 ⋊ #3266 |
494 conjugacy classes of subgroups.
| transitive degree | μt(G) = 160 |
Polycyclic presentation:
2^7,5|a^2=g,b^2=g,e^2=g,b^a=be,c^a=cf,e^a=eg,h^a=h^4,d^b=de,e^b=eg,e^d=eg,h^d=h^479 conjugacy classes — view the full character table.
| maximal subgroup of | D5×#3266, C2×#10615290, #12974376, … |
| maximal normal subgroup of | D5×#3266, C2×#10615290, #12974376, … |
| maximal quotient of | #12088678, #12088798, #12088933, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(640, 17372);