Extensions 1→N→G→Q→1 with N=D70 and Q=C2

Direct product G=N×Q with N=D70 and Q=C2
dρLabelID
C22×D35140C2^2xD35280,39

Semidirect products G=N:Q with N=D70 and Q=C2
extensionφ:Q→Out NdρLabelID
D701C2 = D140φ: C2/C1C2 ⊆ Out D701402+D70:1C2280,26
D702C2 = C357D4φ: C2/C1C2 ⊆ Out D701402D70:2C2280,28
D703C2 = C5⋊D28φ: C2/C1C2 ⊆ Out D701404+D70:3C2280,11
D704C2 = C7⋊D20φ: C2/C1C2 ⊆ Out D701404+D70:4C2280,12
D705C2 = C2×D5×D7φ: C2/C1C2 ⊆ Out D70704+D70:5C2280,36

Non-split extensions G=N.Q with N=D70 and Q=C2
extensionφ:Q→Out NdρLabelID
D70.C2 = D70.C2φ: C2/C1C2 ⊆ Out D701404+D70.C2280,9
D70.2C2 = C4×D35φ: trivial image1402D70.2C2280,25

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