Extensions 1→N→G→Q→1 with N=C₂² and Q=D₃₉

Direct product G=N×Q with N=C₂² and Q=D₃₉

		d	ρ	Label	ID
C₂²×D₃₉		156		C2^2xD39	312,60

Semidirect products G=N:Q with N=C₂² and Q=D₃₉

extension	φ:Q→Aut N	d	ρ	Label	ID
C₂²⋊D₃₉ = C₁₃⋊S₄	φ: D₃₉/C₁₃ → S₃ ⊆ Aut C₂²	52	6+	C2^2:D39	312,48
C₂²⋊₂D₃₉ = C₃₉⋊₇D₄	φ: D₃₉/C₃₉ → C₂ ⊆ Aut C₂²	156	2	C2^2:2D39	312,41

Non-split extensions G=N.Q with N=C₂² and Q=D₃₉

extension	φ:Q→Aut N	d	ρ	Label	ID
C₂².D₃₉ = C₂×Dic₃₉	central extension (φ=1)	312		C2^2.D39	312,40

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Extensions 1→N→G→Q→1 with N=C22 and Q=D39