Question

The greatest common factor of 60w 5y 3 and 78wy 2 is _____.

13 w 5y 3
6 w 5y 3
2 wy 2
6 wy 2

Answer 1

First, interpret the expressions as 60w^5y^3 and 78w y^2.

GCD of coefficients: gcd(60,78) = 6.
For variables, take minimum exponents: w^min(5,1) = w, y^min(3,2) = y^2.

So the greatest common factor is 6wy^2.