Find the greatest common factor (GCF) of 48 and 180.
Note
48 = 2^4 × 3 and 180 = 2^2 × 3^2 × 5; the GCF uses the lowest powers of common primes: 2^2 × 3 = 4 × 3 = 12.
Find the greatest common factor (GCF) of 48 and 180.
48 = 2^4 × 3 and 180 = 2^2 × 3^2 × 5; the GCF uses the lowest powers of common primes: 2^2 × 3 = 4 × 3 = 12.