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C
n
D
n
S
n
A
n
Degree
Linear
Irr Reps
Characters
×
⋊
.
○
≀
Extensions
1→N→G→Q→1 with N=
C
2
and Q=
C
4
×C
7
⋊C
3
Direct product G=N×Q with N=
C
2
and Q=
C
4
×C
7
⋊C
3
d
ρ
Label
ID
C
2
×C
4
×C
7
⋊C
3
56
C2xC4xC7:C3
168,19
Non-split extensions G=N.Q with N=
C
2
and Q=
C
4
×C
7
⋊C
3
extension
φ:Q→Aut N
d
ρ
Label
ID
C
2
.(C
4
×C
7
⋊C
3
) =
C
8
×C
7
⋊C
3
central extension (φ=1)
56
3
C2.(C4xC7:C3)
168,2
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𝔽
○
≀
ℚ
◁