Extensions 1→N→G→Q→1 with N=C₁₇ and Q=C₂₀

Direct product G=N×Q with N=C₁₇ and Q=C₂₀

		d	ρ	Label	ID
C₃₄₀		340	1	C340	340,4

Semidirect products G=N:Q with N=C₁₇ and Q=C₂₀

extension	φ:Q→Aut N	d	ρ	Label	ID
C₁₇⋊C₂₀ = C₅×C₁₇⋊C₄	φ: C₂₀/C₅ → C₄ ⊆ Aut C₁₇	85	4	C17:C20	340,5
C₁₇⋊₂C₂₀ = C₅×Dic₁₇	φ: C₂₀/C₁₀ → C₂ ⊆ Aut C₁₇	340	2	C17:2C20	340,2

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