What is the LCM of 6y3 and 18y4?

Answer 1

Prime factor both numbers or expressions and use the factors the number of times it was used the MOST in either number.

6y^3=2*3*y*y*y

18y^4=2*3*3*y*y*y*y

2*3*3*y*y*y*y=18y^4