Question

Find the least common multiple ( LCM) by listing the multiples .

$8$ and $15$

Answer 1

Given, the numbers are $8$ and $15$

The multiples of $8$ are $=8,16,24,32,40,48,57,64,72,80,88,96,104,112,\mathbf{}\mathbf{120},128.......$

The multiples of $15$ are $=15,30,45,60,75,90,\mathbf{}105,\mathbf{120},135,........$

The common multiples of $8$ and $15$ are $=120,240,360,.....$

Hence , the required LCM of $8$ and $15$ is $120$ .