Extensions 1→N→G→Q→1 with N=C₇ and Q=C₂₁

Direct product G=N×Q with N=C₇ and Q=C₂₁

		d	ρ	Label	ID
C₇×C₂₁		147		C7xC21	147,6

Semidirect products G=N:Q with N=C₇ and Q=C₂₁

extension	φ:Q→Aut N	d	ρ	Label	ID
C₇⋊C₂₁ = C₇×C₇⋊C₃	φ: C₂₁/C₇ → C₃ ⊆ Aut C₇	21	3	C7:C21	147,3

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