Finite Group DatabasebetaFinite Group Databasebeta| order | 28420 |
| automorphism | ? |
| homology | Abelianization (H1) = C4 · Schur multiplier (H2) = C7 |
| unambiguous semidirect product | C7⋊(C7⋊#10596816) |
| Fitting, socle, derived, Hall | C5×C72×C29 ⋊ C4 |
| Hall | C72×C29 ⋊ AGL(1,𝔽5) |
| Hall | C5×C72 ⋊ Dic29 |
| Hall | C5×C29 ⋊ C7⋊Dic7 |
| Sylow | C72 ⋊ #10596816 |
| Sylow | C29 ⋊ C7⋊(C7⋊AGL(1,𝔽5)) |
| Sylow | C5 ⋊ C7⋊Dic203 |
| subgroup | G/H | |
|---|---|---|
| center, Frattini, hypercenter | C1 | G |
| commutator, Fitting, socle, hypocenter | C5×C72×C29 | C4 |
| prime radical, cosocle | C72×D5×C29 | C2 |
| LCS | G ▷ C5×C72×C29 | |
| UCS | C1 | |
120 conjugacy classes of subgroups.
| transitive degree | μt(G) = 7105 |
Polycyclic presentation:
2^2,5,7^2,29|a^2=b,c^a=c^2,d^a=d^6,e^a=e^6,f^a=f^28,c^b=c^42845 conjugacy classes. The character table is too large to display.
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(28420, 125);