Extensions 1→N→G→Q→1 with N=C₅₇ and Q=C₄

Direct product G=N×Q with N=C₅₇ and Q=C₄

		d	ρ	Label	ID
C₂₂₈		228	1	C228	228,6

Semidirect products G=N:Q with N=C₅₇ and Q=C₄

extension	φ:Q→Aut N	d	ρ	Label	ID
C₅₇⋊₁C₄ = Dic₅₇	φ: C₄/C₂ → C₂ ⊆ Aut C₅₇	228	2-	C57:1C4	228,5
C₅₇⋊₂C₄ = C₃×Dic₁₉	φ: C₄/C₂ → C₂ ⊆ Aut C₅₇	228	2	C57:2C4	228,4
C₅₇⋊₃C₄ = Dic₃×C₁₉	φ: C₄/C₂ → C₂ ⊆ Aut C₅₇	228	2	C57:3C4	228,3

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