# What is the least common multiple of 5 and 2?

For 5: $5 \setminus \times 1 = 5 , 5 \times 2 = 10 , 5 \setminus \times 3 = 15 , 5 \setminus \times 4 = 20 , 5 \setminus \times 5 = 25$
For 1: $1 \setminus \times 1 = 1 , 1 \setminus \times 2 = 2 , 1 \setminus \times 3 = 3 , 1 \setminus \times 4 = 4 , 1 \setminus \times 5 = 5$
As you can see, $5 \setminus \times 2 = 10$ therefore it is the least common multiple.