Finite Group Databasebeta

Subgroup lattice of (Cp2)2 × (Cp)2

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.

Orderp6
Subgroupsp5 + 6p4 + 9p3 + 8p2 + 5p + 7
Classes of subgroups16
Automorphismsp20 − 2p19 − p18 + 4p17 − p16 − 2p15 + p14
Classes with a complement7

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)(Cp2)2 × Cpp3 + p2
CpCp2 × (Cp)3p + 1
Cp2 (direct factor)Cp2 × (Cp)2p4 + p3
(Cp)2 (direct factor)(Cp2)2p4
(Cp)2Cp2 × (Cp)2p3 + 2p2 + p
(Cp)2 (characteristic)(Cp)41
Cp2 × Cp (direct factor)Cp2 × Cpp5 + 2p4 + p3
Cp2 × Cp(Cp)3p3 + p2
(Cp)3Cp2 × Cpp3 + p2
(Cp)3(Cp)3p + 1
(Cp2)2 (direct factor)(Cp)2p4
Cp2 × (Cp)2 (direct factor)Cp2p4 + p3
Cp2 × (Cp)2(Cp)2p3 + 2p2 + p
(Cp)4 (characteristic)(Cp)21
(Cp2)2 × Cp (direct factor)Cpp3 + p2
Cp2 × (Cp)3Cpp + 1

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