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Least Common Multiple

Concept

Least Common Multiple

The least common multiple of two numbers is the smallest whole number that has the two numbers as a factor. It's denoted as $L C M (A, B)$ where $A$ and $B$ are the numbers. For example, $L C M (6, 9) = 18$ since $6 \cdot 3 = 18$ and $9 \cdot 2 = 18 .$ In other words, it's the first number in their respectively time tables that are equal.