Finite Group DatabasebetaFinite Group Databasebeta| order | 640 |
| automorphism | ? |
| homology | Abelianization (H1) = C22×C4 · Schur multiplier (H2) = C23 |
| direct product | D5×#358 |
| Fitting | C5×#358 ⋊ C2 |
| Sylow | C5 ⋊ C2×#358 |
232 conjugacy classes of subgroups; only the 77 normal subgroups are shown.
This group has 232 conjugacy classes of subgroups — too many to draw. Only its 77 normal subgroups are shown.
Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.
| transitive degree | μt(G) = 320 |
88 conjugacy classes — view the full character table.
| maximal subgroup of | C2×D5×#358, D5×#2138, D5×#2141, … |
| maximal normal subgroup of | C2×D5×#358, D5×#2138, D5×#2141, … |
| maximal quotient of | D5×#1332, #12009277, #12009329, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(640, 2094);