Extensions 1→N→G→Q→1 with N=C₁₄₀ and Q=C₂

Direct product G=N×Q with N=C₁₄₀ and Q=C₂

		d	ρ	Label	ID
C₂×C₁₄₀		280		C2xC140	280,29

Semidirect products G=N:Q with N=C₁₄₀ and Q=C₂

extension	φ:Q→Aut N	d	ρ	Label	ID
C₁₄₀⋊₁C₂ = D₁₄₀	φ: C₂/C₁ → C₂ ⊆ Aut C₁₄₀	140	2+	C140:1C2	280,26
C₁₄₀⋊₂C₂ = C₄×D₃₅	φ: C₂/C₁ → C₂ ⊆ Aut C₁₄₀	140	2	C140:2C2	280,25
C₁₄₀⋊₃C₂ = C₅×D₂₈	φ: C₂/C₁ → C₂ ⊆ Aut C₁₄₀	140	2	C140:3C2	280,16
C₁₄₀⋊₄C₂ = C₇×D₂₀	φ: C₂/C₁ → C₂ ⊆ Aut C₁₄₀	140	2	C140:4C2	280,21
C₁₄₀⋊₅C₂ = D₇×C₂₀	φ: C₂/C₁ → C₂ ⊆ Aut C₁₄₀	140	2	C140:5C2	280,15
C₁₄₀⋊₆C₂ = D₅×C₂₈	φ: C₂/C₁ → C₂ ⊆ Aut C₁₄₀	140	2	C140:6C2	280,20
C₁₄₀⋊₇C₂ = D₄×C₃₅	φ: C₂/C₁ → C₂ ⊆ Aut C₁₄₀	140	2	C140:7C2	280,30

Non-split extensions G=N.Q with N=C₁₄₀ and Q=C₂

extension	φ:Q→Aut N	d	ρ	Label	ID
C₁₄₀.₁C₂ = Dic₇₀	φ: C₂/C₁ → C₂ ⊆ Aut C₁₄₀	280	2-	C140.1C2	280,24
C₁₄₀.₂C₂ = C₃₅⋊₃C₈	φ: C₂/C₁ → C₂ ⊆ Aut C₁₄₀	280	2	C140.2C2	280,3
C₁₄₀.₃C₂ = C₅×Dic₁₄	φ: C₂/C₁ → C₂ ⊆ Aut C₁₄₀	280	2	C140.3C2	280,14
C₁₄₀.₄C₂ = C₇×Dic₁₀	φ: C₂/C₁ → C₂ ⊆ Aut C₁₄₀	280	2	C140.4C2	280,19
C₁₄₀.₅C₂ = C₅×C₇⋊C₈	φ: C₂/C₁ → C₂ ⊆ Aut C₁₄₀	280	2	C140.5C2	280,2
C₁₄₀.₆C₂ = C₇×C₅⋊₂C₈	φ: C₂/C₁ → C₂ ⊆ Aut C₁₄₀	280	2	C140.6C2	280,1
C₁₄₀.₇C₂ = Q₈×C₃₅	φ: C₂/C₁ → C₂ ⊆ Aut C₁₄₀	280	2	C140.7C2	280,31

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