The least common multiple (lcm) of two or more integers is the smallest positive integer that is divisible by each of those integers.
Let $a_1, a_2, \cdots, a_n \in \mathbb{N}^{*}$, the lcm of $a_1, a_2, \cdots, a_n$ is denoted : $$\mathrm{lcm}(a_1, a_2, \cdots, a_n)$$ Or with the notation : $$a_1 \vee a_2 \vee \cdots \vee a_n$$