Question

write three common multiple of 3,4 and 5.​

Answer 1

${\mathbb{\pink{\underline{\underline{\huge{ANSWER : \: }}}}}}$

Let us first factorize(prime factorization) the numbers:

3= 1,3

5= 1,5

6=1,2,3

The least common multiple will be= 1*3*2*5(take the common factors among the numbers once and the rest uncommon)=30

All the multiples of 30 will be your common multiples..

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