Determine the highest common factor (HCF) or greatest common divisor (GCD) of 48 and 180.
Note
Prime factorization gives 48 = 2^4·3 and 180 = 2^2·3^2·5, so the GCD is 2^2·3 = 12.
Determine the highest common factor (HCF) or greatest common divisor (GCD) of 48 and 180.
Prime factorization gives 48 = 2^4·3 and 180 = 2^2·3^2·5, so the GCD is 2^2·3 = 12.