Finite Group Databasebeta

Subgroup lattice of Cp2 × (Cp)4

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
Subgroups4p6 + 4p5 + 11p4 + 9p3 + 8p2 + 5p + 7
Classes of subgroups13
Automorphismsp26 − 2p25 + p23 + 2p21 − 2p20 − p18 + 2p16 − p15
Classes with a complement8

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 × (Cp)3p4 + p3 + p2 + p
Cp (characteristic)(Cp)51
Cp2 (direct factor)(Cp)4p4
(Cp)2 (direct factor)Cp2 × (Cp)2p6 + p5 + 2p4 + p3 + p2
(Cp)2(Cp)4p3 + p2 + p + 1
Cp2 × Cp (direct factor)(Cp)3p6 + p5 + p4 + p3
(Cp)3 (direct factor)Cp2 × Cpp6 + p5 + p4 + p3
(Cp)3(Cp)3p4 + p3 + 2p2 + p + 1
Cp2 × (Cp)2 (direct factor)(Cp)2p6 + p5 + 2p4 + p3 + p2
(Cp)4 (direct factor)Cp2p4
(Cp)4(Cp)2p3 + p2 + p + 1
Cp2 × (Cp)3 (direct factor)Cpp4 + p3 + p2 + p
(Cp)5 (characteristic)Cp1

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