Question

Find first five common multiples of:

$12$ and $15$

Answer 1

Find first five common multiples of given numbers:

Multiple of a given number is a number obtained by multiplying it by an integer.

Taking the positive integers $\left(1,2,3,4,5....\right)$ and multiplying them with the given numbers, we can obtain the first five common multiples as:

The multiples of $12$ are: $12,24,36,48,60,72,84,96,108,120,132,144,156,168,180,192,204...$

The multiples of $15$ are: $15,30,45,60,75,90,105,120,135,150,165,180,195,210,225,240,255,270,285,300,315...$

From the above multiples, we find the first five common multiples of $12$ and $15$ as $60,120,180,240$ and $300$.

Hence, $60,120,180,240$ and $300$ are the first five common multiples of $12$ and $15$.