Finite Group Databasebeta

Subgroup lattice of Cp4 × Cp

Valid at every prime. The subgroup lattice of this shape is one object: each count below is a polynomial in p, and substituting a prime gives the lattice of that group.

Orderp5
Subgroups4p + 6
Classes of subgroups10
Automorphismsp7 − 2p6 + p5
Classes with a complement2

Diagram

Each circle is one class of subgroups, labeled by the exponents of its shape — 3,2 is Cp3 × Cp2, and 2²,1 is (Cp2)2 × Cp. The badge is how many subgroups the class holds. Hover a row of the table to light its circle, or click a circle to jump to its row.

Classes of subgroups

SubgroupQuotientSubgroups
Cp (direct factor)Cp4p
Cp (characteristic)Cp3 × Cp1
Cp2Cp3p − 1
Cp2 (characteristic)Cp2 × Cp1
(Cp)2 (characteristic)Cp31
Cp3Cp2p − 1
Cp3 (characteristic)(Cp)21
Cp2 × Cp (characteristic)Cp21
Cp4 (direct factor)Cpp
Cp3 × Cp (characteristic)Cp1

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