Question

find the lcm of the following numbers by prime factorisation 21,28,36
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Answer 1

Answer:

Hi ,

21 = 3 × 7

28 = 2 × 2 × 7

36 = 2 × 2 × 3 × 3

45 = 3 × 3 × 5

LCM = 2² × 3² × 5 × 7

= 1260

I hope this helps you

Step-by-step explanation:

Answer 2

Step-by-step explanation:

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