1.

Find the lcm of 15 ,30, 90 by prime factorization ​

Answer»

15 = 3 ☓ 5 30 = 2 ☓ 3 ☓ 5 90 = 2 ☓ 3 ☓ 3 ☓ 5 Lcm = 3 ☓ 3 ☓ 5 ☓ 2 = 90 HENCE 90 is the lcm of 15, 30, 90



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