How do you find the Least common multiple of $18xy^2, 15y^3$ ?

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Answer 1 · 2018-03-12T23:49:11

The LCM is $3y^2$

To find the LCM, first find the prime factorization (a composite number being divided into prime numbers being multiplied together).

$18xy^2=3*3*2*x*y*y$

$15y^3=3*5*y*y*y$

Now, circle the ones that they have in common. They each have at least one 3 and 2 y's. Multiply these together to get your LCM.

How do you find the Least common multiple of 18xy^2, 15y^318xy^2, 15y^3?