Extensions 1→N→G→Q→1 with N=C₁₃₈ and Q=C₂

Direct product G=NxQ with N=C₁₃₈ and Q=C₂

		d	ρ	Label	ID
C₂xC₁₃₈		276		C2xC138	276,10

Semidirect products G=N:Q with N=C₁₃₈ and Q=C₂

extension	φ:Q→Aut N	d	ρ	Label	ID
C₁₃₈:₁C₂ = D₁₃₈	φ: C₂/C₁ → C₂ ⊆ Aut C₁₃₈	138	2+	C138:1C2	276,9
C₁₃₈:₂C₂ = C₆xD₂₃	φ: C₂/C₁ → C₂ ⊆ Aut C₁₃₈	138	2	C138:2C2	276,7
C₁₃₈:₃C₂ = S₃xC₄₆	φ: C₂/C₁ → C₂ ⊆ Aut C₁₃₈	138	2	C138:3C2	276,8

Non-split extensions G=N.Q with N=C₁₃₈ and Q=C₂

extension	φ:Q→Aut N	d	ρ	Label	ID
C₁₃₈.₁C₂ = Dic₆₉	φ: C₂/C₁ → C₂ ⊆ Aut C₁₃₈	276	2-	C138.1C2	276,3
C₁₃₈.₂C₂ = C₃xDic₂₃	φ: C₂/C₁ → C₂ ⊆ Aut C₁₃₈	276	2	C138.2C2	276,2
C₁₃₈.₃C₂ = Dic₃xC₂₃	φ: C₂/C₁ → C₂ ⊆ Aut C₁₃₈	276	2	C138.3C2	276,1

Extensions 1→N→G→Q→1 with N=C138 and Q=C2