Extensions 1→N→G→Q→1 with N=C₁₃ and Q=C₂₁

Direct product G=NxQ with N=C₁₃ and Q=C₂₁

		d	ρ	Label	ID
C₂₇₃		273	1	C273	273,5

Semidirect products G=N:Q with N=C₁₃ and Q=C₂₁

extension	φ:Q→Aut N	d	ρ	Label	ID
C₁₃:C₂₁ = C₇xC₁₃:C₃	φ: C₂₁/C₇ → C₃ ⊆ Aut C₁₃	91	3	C13:C21	273,2

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