Question

Find the LCM of 15, 30, 60, 90​

Answer 1

Answer:

LCM(15,30,60,90)= 180

Step-by-step explanation:

To find the LCM of 15,30,60,90 do the prime factorisation of the number.

$15 = 3 \times 5 \\ \\ 30 = 2 \times 3 \times 5 \\ \\ 60 = 2 \times 2 \times 3 \times 5 \\ \\ 90 = 2 \times 3 \times 3 \times 5 \\ \\ LCM(15,30,60,90) = 2 \times 2 \times 3 \times 3 \times 5 \\ \\ = 4 \times 9 \times 5 \\ \\ = 20 \times 9 \\ \\ = 180$

Hope it helps you.

Answer 2

Step-by-step explanation:

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