Extensions 1→N→G→Q→1 with N=C2 and Q=D57
Direct product G=N×Q with N=C2 and Q=D57
Non-split extensions G=N.Q with N=C2 and Q=D57
extension | φ:Q→Aut N | d | ρ | Label | ID |
C2.D57 = Dic57 | central extension (φ=1) | 228 | 2- | C2.D57 | 228,5 |
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