Question

find the least common multiple (lcm) of 2 and 5.

Explanation:

Step1: List multiples of 2

Multiples of 2: $2, 4, 6, 8, 10, 12, ...$

Step2: List multiples of 5

Multiples of 5: $5, 10, 15, 20, ...$

Step3: Identify smallest shared multiple

The first common multiple is $10$.

Answer:

$10$