Finite Group DatabasebetaFinite Group Databasebeta| order | 7980 |
| automorphism | ? |
| homology | Abelianization (H1) = C22 · Schur multiplier (H2) = C2 |
| unambiguous semidirect product | D21⋊D95 |
| subgroup | G/H | |
|---|---|---|
| center, Frattini, hypercenter | C1 | G |
| commutator, Fitting, socle, hypocenter | C3×C5×C7×C19 | C22 |
| LCS | G ▷ C3×C5×C7×C19 | |
| UCS | C1 | |
80 conjugacy classes of subgroups.
Polycyclic presentation:
2^2,3,5,7,19|d^a=d^4,e^a=e^6,f^a=f^18,c^b=c^2,e^b=e^6579 conjugacy classes — view the full character table.
| maximal subgroup of | D63⋊D95, #37561389, #37561390, … |
| maximal normal subgroup of | #37561389, #37561390, (C3⋊AGL(1,𝔽7))⋊D95, … |
| maximal quotient of | D63⋊D95, C3×D21⋊D95, D21⋊D285, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(7980, 163);