Finite Group DatabasebetaFinite Group Databasebeta| order | 840 |
| isoclinism | isoclinic class of D5×D21 |
| automorphism | ? |
| homology | Abelianization (H1) = C23 · Schur multiplier (H2) = C23 |
| direct product | C2×D5×D21 |
| Fitting, socle | C2×C3×C5×C7 ⋊ C22 |
| derived, Hall | C3×C5×C7 ⋊ C23 |
| Hall | C5×C7 ⋊ C22×D3 |
| Hall | C3×C7 ⋊ C22×D5 |
| Hall | C3×C5 ⋊ C22×D7 |
| Sylow | C7 ⋊ C2×D3×D5 |
| Sylow | C5 ⋊ C22×D21 |
| Sylow | C3 ⋊ C2×D5×D7 |
| subgroup | G/H | |
|---|---|---|
| center, hypercenter | C2 | D5×D21 |
| commutator, cosocle, hypocenter | C3×C5×C7 | C23 |
| Frattini | C1 | G |
| Fitting, socle | C2×C3×C5×C7 | C22 |
| LCS | G ▷ C3×C5×C7 | |
| UCS | C1 ◁ C2 | |
128 conjugacy classes of subgroups.
| transitive degree | μt(G) = 210 |
96 conjugacy classes — view the full character table.
| maximal subgroup of | (C2×AGL(1,𝔽5))⋊D21, #13132474, D5×D21⋊C4, … |
| maximal normal subgroup of | (C2×AGL(1,𝔽5))⋊D21, #13132474, D5×D21⋊C4, … |
| maximal quotient of | Dic10×D21, #13132740, #13132741, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(840, 173);