Properties

Label ab/2.2.4.40
Order \( 2^{7} \cdot 5 \)
Exponent \( 2^{3} \cdot 5 \)
Abelian yes
$\card{\operatorname{Aut}(G)}$ \( 2^{18} \cdot 3 \)
Trans deg. $640$
Rank $4$

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This group is not stored in the database. However, basic information about the group, computed on the fly, is listed below.

Group information

Description:$C_{2}^{2} \times C_{4} \times C_{40}$
Order: \(640\)\(\medspace = 2^{7} \cdot 5 \)
Exponent: \(40\)\(\medspace = 2^{3} \cdot 5 \)
Automorphism group:Group of order \(786432\)\(\medspace = 2^{18} \cdot 3 \)
Outer automorphisms:Group of order \(786432\)\(\medspace = 2^{18} \cdot 3 \)
Nilpotency class:$1$
Derived length:$1$

This group is abelian (hence nilpotent, solvable, supersolvable, monomial, metabelian, and an A-group) and elementary for $p = 2$ (hence hyperelementary). Whether it is metacyclic or rational has not been computed.

Group statistics

Order 1 2 4 5 8 10 20 40
Elements 1 15 48 4 64 60 192 256 640
Conjugacy classes   1 15 48 4 64 60 192 256 640
Divisions data not computed
Autjugacy classes data not computed

Dimension 1
Irr. complex chars.   640 640

Constructions

Rank: $4$
Inequivalent generating quadruples: not computed

Homology

Primary decomposition: $C_{2}^{2} \times C_{4} \times C_{8} \times C_{5}$

Subgroups

Center: $Z \simeq$ $C_{2}^{2} \times C_{4} \times C_{40}$ $G/Z \simeq$ $C_1$
Commutator: $G' \simeq$ $C_1$ $G/G' \simeq$ $C_{2}^{2} \times C_{4} \times C_{40}$
Frattini: $\Phi \simeq$ $C_2\times C_4$ $G/\Phi \simeq$ $C_2^3\times C_{10}$
Fitting: $\operatorname{Fit} \simeq$ $C_{2}^{2} \times C_{4} \times C_{40}$ $G/\operatorname{Fit} \simeq$ $C_1$
Radical: $R \simeq$ $C_{2}^{2} \times C_{4} \times C_{40}$ $G/R \simeq$ $C_1$
Socle: $S \simeq$ $C_2^3\times C_{10}$ $G/S \simeq$ $C_2\times C_4$
2-Sylow subgroup: $P_{2} \simeq$ $C_2^2\times C_4\times C_8$
5-Sylow subgroup: $P_{5} \simeq$ $C_5$