Group information
Description: | $C_7:C_3\times S_4$ |
Order: | \(504\)\(\medspace = 2^{3} \cdot 3^{2} \cdot 7 \) |
Exponent: | \(84\)\(\medspace = 2^{2} \cdot 3 \cdot 7 \) |
Automorphism group: | $S_4\times F_7$, of order \(1008\)\(\medspace = 2^{4} \cdot 3^{2} \cdot 7 \) (generators) |
Outer automorphisms: | $C_2$, of order \(2\) |
Composition factors: | $C_2$ x 3, $C_3$ x 2, $C_7$ |
Derived length: | $3$ |
This group is nonabelian and monomial (hence solvable).
Group statistics
Order | 1 | 2 | 3 | 4 | 6 | 7 | 12 | 14 | 21 | 28 | |
---|---|---|---|---|---|---|---|---|---|---|---|
Elements | 1 | 9 | 134 | 6 | 126 | 6 | 84 | 54 | 48 | 36 | 504 |
Conjugacy classes | 1 | 2 | 5 | 1 | 4 | 2 | 2 | 4 | 2 | 2 | 25 |
Divisions | 1 | 2 | 3 | 1 | 2 | 1 | 1 | 2 | 1 | 1 | 15 |
Autjugacy classes | 1 | 2 | 5 | 1 | 4 | 1 | 2 | 2 | 1 | 1 | 20 |
Dimension | 1 | 2 | 3 | 4 | 6 | 9 | 12 | 18 | |
---|---|---|---|---|---|---|---|---|---|
Irr. complex chars. | 6 | 3 | 10 | 0 | 2 | 4 | 0 | 0 | 25 |
Irr. rational chars. | 2 | 3 | 2 | 1 | 4 | 0 | 1 | 2 | 15 |
Minimal Presentations
Permutation degree: | $11$ |
Transitive degree: | $28$ |
Rank: | $2$ |
Inequivalent generating pairs: | $72$ |
Minimal degrees of faithful linear representations
Over $\mathbb{C}$ | Over $\mathbb{R}$ | Over $\mathbb{Q}$ | |
---|---|---|---|
Irreducible | 9 | 18 | 18 |
Arbitrary | 6 | 9 | 9 |
Constructions
Presentation: | $\langle a, b, c, d \mid a^{6}=b^{3}=c^{14}=d^{2}=[a,d]=[c,d]=1, b^{a}=b^{2}, c^{a}=c^{9}d, c^{b}=c^{8}d, d^{b}=c^{7}d \rangle$ | |||||||||
Permutation group: | Degree $11$ $\langle(2,3), (6,7,8)(9,11,10), (2,3,4), (5,6,7,9,8,10,11), (1,2)(3,4), (1,3)(2,4)\rangle$ | |||||||||
Matrix group: | $\left\langle \left(\begin{array}{rr} 8 & 21 \\ 21 & 8 \end{array}\right), \left(\begin{array}{rr} 1 & 14 \\ 14 & 1 \end{array}\right), \left(\begin{array}{rr} 15 & 0 \\ 14 & 15 \end{array}\right), \left(\begin{array}{rr} 1 & 4 \\ 0 & 1 \end{array}\right), \left(\begin{array}{rr} 22 & 7 \\ 7 & 1 \end{array}\right), \left(\begin{array}{rr} 9 & 0 \\ 0 & 25 \end{array}\right) \right\rangle \subseteq \GL_{2}(\Z/28\Z)$ | |||||||||
Transitive group: | 28T69 | 42T93 | 42T94 | more information | ||||||
Direct product: | $(C_7:C_3)$ $\, \times\, $ $S_4$ | |||||||||
Semidirect product: | $(C_7\times S_4)$ $\,\rtimes\,$ $C_3$ | $C_7$ $\,\rtimes\,$ $(C_3\times S_4)$ | $(C_7\times A_4)$ $\,\rtimes\,$ $C_6$ | $A_4$ $\,\rtimes\,$ $(C_7:C_6)$ | all 8 | |||||
Trans. wreath product: | not isomorphic to a non-trivial transitive wreath product |
Elements of the group are displayed as words in the generators from the presentation given above.
Homology
Abelianization: | $C_{6} \simeq C_{2} \times C_{3}$ |
Schur multiplier: | $C_{2}$ |
Commutator length: | $1$ |
Subgroups
There are 380 subgroups in 48 conjugacy classes, 12 normal, and all normal subgroups are characteristic.
Characteristic subgroups are shown in this color.
Special subgroups
Center: | $Z \simeq$ $C_1$ | $G/Z \simeq$ $C_7:C_3\times S_4$ |
Commutator: | $G' \simeq$ $C_7\times A_4$ | $G/G' \simeq$ $C_6$ |
Frattini: | $\Phi \simeq$ $C_1$ | $G/\Phi \simeq$ $C_7:C_3\times S_4$ |
Fitting: | $\operatorname{Fit} \simeq$ $C_2\times C_{14}$ | $G/\operatorname{Fit} \simeq$ $C_3\times S_3$ |
Radical: | $R \simeq$ $C_7:C_3\times S_4$ | $G/R \simeq$ $C_1$ |
Socle: | $\operatorname{soc} \simeq$ $C_2\times C_{14}$ | $G/\operatorname{soc} \simeq$ $C_3\times S_3$ |
2-Sylow subgroup: | $P_{ 2 } \simeq$ $D_4$ | |
3-Sylow subgroup: | $P_{ 3 } \simeq$ $C_3^2$ | |
7-Sylow subgroup: | $P_{ 7 } \simeq$ $C_7$ |
Subgroup diagram and profile
For the default diagram, subgroups are sorted vertically by the number of prime divisors (counted with multiplicity) in their orders.
To see subgroups sorted vertically by order instead, check this box.
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Subgroup information
Click on a subgroup in the diagram to see information about it.
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Series
Derived series | $C_7:C_3\times S_4$ | $\rhd$ | $C_7\times A_4$ | $\rhd$ | $C_2^2$ | $\rhd$ | $C_1$ | ||||
Chief series | $C_7:C_3\times S_4$ | $\rhd$ | $A_4\times C_7:C_3$ | $\rhd$ | $C_7\times A_4$ | $\rhd$ | $C_2\times C_{14}$ | $\rhd$ | $C_2^2$ | $\rhd$ | $C_1$ |
Lower central series | $C_7:C_3\times S_4$ | $\rhd$ | $C_7\times A_4$ | ||||||||
Upper central series | $C_1$ |
Supergroups
This group is a maximal subgroup of 15 larger groups in the database.
This group is a maximal quotient of 18 larger groups in the database.
Character theory
Complex character table
See the $25 \times 25$ character table. Alternatively, you may search for characters of this group with desired properties.
Rational character table
1A | 2A | 2B | 3A | 3B | 3C | 4A | 6A | 6B | 7A | 12A | 14A | 14B | 21A | 28A | ||
Size | 1 | 3 | 6 | 14 | 8 | 112 | 6 | 42 | 84 | 6 | 84 | 18 | 36 | 48 | 36 | |
2 P | 1A | 1A | 1A | 3A | 3B | 3C | 2A | 3A | 3A | 7A | 6A | 7A | 7A | 21A | 14A | |
3 P | 1A | 2A | 2B | 1A | 1A | 1A | 4A | 2A | 2B | 7A | 4A | 14A | 14B | 7A | 28A | |
7 P | 1A | 2A | 2B | 3A | 3B | 3C | 4A | 6A | 6B | 1A | 12A | 2A | 2B | 3B | 4A | |
504.159.1a | ||||||||||||||||
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504.159.6a | ||||||||||||||||
504.159.9a | ||||||||||||||||
504.159.9b |