Extensions 1→N→G→Q→1 with N=C₁₉ and Q=C₂₁

Direct product G=N×Q with N=C₁₉ and Q=C₂₁

		d	ρ	Label	ID
C₃₉₉		399	1	C399	399,5

Semidirect products G=N:Q with N=C₁₉ and Q=C₂₁

extension	φ:Q→Aut N	d	ρ	Label	ID
C₁₉⋊C₂₁ = C₇×C₁₉⋊C₃	φ: C₂₁/C₇ → C₃ ⊆ Aut C₁₉	133	3	C19:C21	399,2

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