Extensions 1→N→G→Q→1 with N=C₁₉ and Q=C₂₀

Direct product G=N×Q with N=C₁₉ and Q=C₂₀

		d	ρ	Label	ID
C₃₈₀		380	1	C380	380,4

Semidirect products G=N:Q with N=C₁₉ and Q=C₂₀

extension	φ:Q→Aut N	d	ρ	Label	ID
C₁₉⋊C₂₀ = C₅×Dic₁₉	φ: C₂₀/C₁₀ → C₂ ⊆ Aut C₁₉	380	2	C19:C20	380,2

׿

×

⋊

ℤ

𝔽

○

≀

ℚ

◁