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About
C
n
D
n
S
n
A
n
Degree
Linear
Irr Reps
Characters
×
⋊
.
○
≀
Extensions
1→N→G→Q→1 with N=
C
5
and Q=
C
84
Direct product G=N×Q with N=
C
5
and Q=
C
84
d
ρ
Label
ID
C
420
420
1
C420
420,12
Semidirect products G=N:Q with N=
C
5
and Q=
C
84
extension
φ:Q→Aut N
d
ρ
Label
ID
C
5
⋊C
84
=
F
5
×C
21
φ:
C
84
/
C
21
→
C
4
⊆ Aut
C
5
105
4
C5:C84
420,20
C
5
⋊
2
C
84
=
Dic
5
×C
21
φ:
C
84
/
C
42
→
C
2
⊆ Aut
C
5
420
2
C5:2C84
420,6
×
⋊
ℤ
𝔽
○
≀
ℚ
◁