Extensions 1→N→G→Q→1 with N=C₂ and Q=C₄².₇C₂²

Direct product G=N×Q with N=C₂ and Q=C₄².₇C₂²

		d	ρ	Label	ID
C₂×C₄².₇C₂²		64		C2xC4^2.7C2^2	128,1651

Non-split extensions G=N.Q with N=C₂ and Q=C₄².₇C₂²

extension	φ:Q→Aut N	d	ρ	Label	ID
C₂.₁(C₄².₇C₂²) = (C₄×C₈)⋊₁₂C₄	central extension (φ=1)	128		C2.1(C4^2.7C2^2)	128,478
C₂.₂(C₄².₇C₂²) = C₄².₃₇₉D₄	central extension (φ=1)	64		C2.2(C4^2.7C2^2)	128,482
C₂.₃(C₄².₇C₂²) = C₄².₄₅Q₈	central extension (φ=1)	128		C2.3(C4^2.7C2^2)	128,500
C₂.₄(C₄².₇C₂²) = C₄⋊C₄⋊₃C₈	central extension (φ=1)	128		C2.4(C4^2.7C2^2)	128,648
C₂.₅(C₄².₇C₂²) = C₂²⋊C₄⋊₄C₈	central extension (φ=1)	64		C2.5(C4^2.7C2^2)	128,655
C₂.₆(C₄².₇C₂²) = C₄².₉₅D₄	central stem extension (φ=1)	64		C2.6(C4^2.7C2^2)	128,530
C₂.₇(C₄².₇C₂²) = C₂⁴.₅₃(C₂×C₄)	central stem extension (φ=1)	64		C2.7(C4^2.7C2^2)	128,550
C₂.₈(C₄².₇C₂²) = C₄².₂₃Q₈	central stem extension (φ=1)	128		C2.8(C4^2.7C2^2)	128,564
C₂.₉(C₄².₇C₂²) = C₄²⋊₄C₄.C₂	central stem extension (φ=1)	128		C2.9(C4^2.7C2^2)	128,572
C₂.₁₀(C₄².₇C₂²) = (C₂×C₈).Q₈	central stem extension (φ=1)	128		C2.10(C4^2.7C2^2)	128,649
C₂.₁₁(C₄².₇C₂²) = C₂³.₉M₄(2)	central stem extension (φ=1)	64		C2.11(C4^2.7C2^2)	128,656

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