Question

Find first three common multiples of :
a) $6$ and $8$
b) $12$ and $18$

Answer 1

A) The multiples of $6$ are $6,12,18,24,30,36,42,48,...$

The multiples of $8$ are $816,24,32,40,48,56,64,...$

Therefore, the first three common multiples are $24,48,72$

B) The multiples of $12$ are $12,24,36,48,60,72,84,96,108,120,132,144,156,168,...$

The multiples of $18$ are $18,36,54,72,90,108,126,144,162,180,198,216,234,252,,...$

Therefore, the first three common multiples are $36,72,108$