Finite Group DatabasebetaFinite Group Databasebeta| order | 9940 |
| isoclinism | isoclinic class of D7 |
| automorphism | ? |
| homology | Abelianization (H1) = C4×C5×C71 · Schur multiplier (H2) = C1 |
| direct product | C5×Dic7×C71 |
| unambiguous semidirect product | C7⋊(C4×C5×C71) |
| derived, Sylow | C7 ⋊ C4×C5×C71 |
| Hall | C5×C7×C71 ⋊ C4 |
| Hall | C7×C71 ⋊ C4×C5 |
| Hall | C5×C7 ⋊ C4×C71 |
| subgroup | G/H | |
|---|---|---|
| center, hypercenter | C2×C5×C71 | D7 |
| commutator, hypocenter | C7 | C4×C5×C71 |
| Frattini | C2 | C5×D7×C71 |
| Fitting, socle, prime radical | C2×C5×C7×C71 | C2 |
| cosocle | C2×C7 | C2×C5×C71 |
| LCS | G ▷ C7 | |
| UCS | C1 ◁ C2×C5×C71 | |
24 conjugacy classes of subgroups.
3550 conjugacy classes. The character table is too large to display.
| maximal subgroup of | C3×C5×Dic7×C71, C5×C71×Dic21, C5×C71×ΓL(1,𝔽8)⋊C4 |
| maximal normal subgroup of | C3×C5×Dic7×C71, C5×C71×ΓL(1,𝔽8)⋊C4 |
| maximal quotient of | C3×C5×Dic7×C71, C5×C71×Dic21 |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(9940, 6);