Find the LCM: Calculating Least Common Multiple of 2 and 5

Question

What is the least common multiple of these two numbers?

2   5 \boxed{2}~~~\boxed{5}

Step-by-Step Solution

To find the least common multiple (LCM) of 2 2 and 5 5 , we list the multiples of each number:

  • Multiples of 2 2 are 2,4,6,8,10, 2, 4, 6, 8, 10, \ldots
  • Multiples of 5 5 are 5,10,15, 5, 10, 15, \ldots

The smallest common multiple is 10 10 .

Answer

10