Finite Group DatabasebetaFinite Group Databasebeta| order | 640 |
| automorphism | ? |
| homology | Abelianization (H1) = C23×C4 · Schur multiplier (H2) = C25 |
No aliases for this group.
| Fitting | C5×#430 ⋊ C2 |
| Sylow | C5 ⋊ #2956 |
458 conjugacy classes of subgroups; only the 177 normal subgroups are shown.
This group has 458 conjugacy classes of subgroups — too many to draw. Only its 177 normal subgroups are shown.
Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.
| transitive degree | μt(G) = 80 |
Polycyclic presentation:
2^7,5|a^2=f,c^2=f,e^2=g,f^2=g,b^a=be,e^a=eg,e^b=eg,h^b=h^4,d^c=dg,h^c=h^488 conjugacy classes — view the full character table.
| maximal subgroup of | #12120162, #12120164, #12120171, … |
| maximal normal subgroup of | #12120162, #12120164, #12120171, … |
| maximal quotient of | #12068736, #12068747, #12068927, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(640, 13071);