12

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Summary

Factorization

The number 12 has prime factors 2 and 3 and prime factorization:

$12=2^{2}\cdot 3^{1}=4\cdot 3$

Properties and families

Property or family	Parameter values	First few members of the family	Proof of satisfaction/membership/containment
lcm of all numbers so far: lcm of the first few natural numbers	lcm of the first four natural numbers	1, 1, 2, 6, 12, 60, 60, 420, [SHOW MORE] 840, 2520 View list on OEIS	$\operatorname {lcm} \{1,2,3,4\}=12$.
Landau's function: maximum over additive partitions of a number of the lcm of the parts	Landau's function evaluated at 7