Question

Write the lowest common multiple of $3\mathrm{and}4$

Answer 1

First find the multiples of $3\mathrm{and}4$

Multiples of $3=3,9,12,15,18,21,24,27,30...$

Multiples of $4=4,8,12,16,20,24,28,32,36,40...$

Common multiples of $3\mathrm{and}4$ are $12,24...$

Hence, lowest common multiple of $3\mathrm{and}4$ is $12$.