Finite Group DatabasebetaFinite Group Databasebeta| order | 640 |
| automorphism | ? |
| homology | Abelianization (H1) = C23 · Schur multiplier (H2) = C24 |
No aliases for this group.
| Fitting | C2×C5×#104 ⋊ C2 |
| Sylow | C5 ⋊ #2004 |
394 conjugacy classes of subgroups; only the 73 normal subgroups are shown.
This group has 394 conjugacy classes of subgroups — too many to draw. Only its 73 normal subgroups are shown.
Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.
| transitive degree | μt(G) = 160 |
Polycyclic presentation:
2^7,5|b^2=g,d^2=g,b^a=bd,c^a=ce,d^a=dg,f^a=fg,c^b=cf,d^b=dg,h^b=h^4,d^c=dg,h^c=h^482 conjugacy classes — view the full character table.
| maximal subgroup of | D5×#2004, C2×#10601179, #12126206, … |
| maximal normal subgroup of | D5×#2004, C2×#10601179, #12126206, … |
| maximal quotient of | #11999509, #11999523, #11999565, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(640, 3261);