# Extensions 1→N→G→Q→1 with N=C2 and Q=C10.10C42

Direct product G=N×Q with N=C2 and Q=C10.10C42
dρLabelID
C2×C10.10C42320C2xC10.10C4^2320,835

Non-split extensions G=N.Q with N=C2 and Q=C10.10C42
extensionφ:Q→Aut NdρLabelID
C2.1(C10.10C42) = (C2×C20)⋊8C8central extension (φ=1)320C2.1(C10.10C4^2)320,82
C2.2(C10.10C42) = (C2×C40)⋊15C4central extension (φ=1)320C2.2(C10.10C4^2)320,108
C2.3(C10.10C42) = C426Dic5central stem extension (φ=1)80C2.3(C10.10C4^2)320,81
C2.4(C10.10C42) = C24.D10central stem extension (φ=1)80C2.4(C10.10C4^2)320,84
C2.5(C10.10C42) = C24.2D10central stem extension (φ=1)80C2.5(C10.10C4^2)320,85
C2.6(C10.10C42) = C20.31C42central stem extension (φ=1)320C2.6(C10.10C4^2)320,87
C2.7(C10.10C42) = (C2×C20).Q8central stem extension (φ=1)160C2.7(C10.10C4^2)320,88
C2.8(C10.10C42) = C421Dic5central stem extension (φ=1)804C2.8(C10.10C4^2)320,89
C2.9(C10.10C42) = C20.32C42central stem extension (φ=1)80C2.9(C10.10C4^2)320,90
C2.10(C10.10C42) = C20.60(C4⋊C4)central stem extension (φ=1)804C2.10(C10.10C4^2)320,91
C2.11(C10.10C42) = C20.39C42central stem extension (φ=1)320C2.11(C10.10C4^2)320,109
C2.12(C10.10C42) = C20.40C42central stem extension (φ=1)160C2.12(C10.10C4^2)320,110
C2.13(C10.10C42) = M4(2)⋊Dic5central stem extension (φ=1)160C2.13(C10.10C4^2)320,112
C2.14(C10.10C42) = C20.33C42central stem extension (φ=1)80C2.14(C10.10C4^2)320,113
C2.15(C10.10C42) = (C2×C40)⋊C4central stem extension (φ=1)804C2.15(C10.10C4^2)320,114
C2.16(C10.10C42) = C23.9D20central stem extension (φ=1)804C2.16(C10.10C4^2)320,115
C2.17(C10.10C42) = C20.34C42central stem extension (φ=1)160C2.17(C10.10C4^2)320,116
C2.18(C10.10C42) = M4(2)⋊4Dic5central stem extension (φ=1)804C2.18(C10.10C4^2)320,117
C2.19(C10.10C42) = C20.51C42central stem extension (φ=1)804C2.19(C10.10C4^2)320,118

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