What is the Least Common Multiple of 72672 and 72680?

Least common multiple or lowest common denominator (lcd) can be calculated in two way; with the LCM formula calculation of greatest common factor (GCF), or multiplying the prime factors with the highest exponent factor.

Least Common Multiple of 72672 and 72680 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 72672 and 72680, than apply into the LCM equation.

GCF(72672,72680) = 8
LCM(72672,72680) = ( 72672 × 72680) / 8
LCM(72672,72680) = 5281800960 / 8
LCM(72672,72680) = 660225120

Least Common Multiple (LCM) of 72672 and 72680 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 72672 and 72680. First we will calculate the prime factors of 72672 and 72680.

Prime Factorization of 72672

Prime Factorization of 72680

Now multiplying the highest exponent prime factors to calculate the LCM of 72672 and 72680.

LCM(72672,72680) = 2⁵ × 3¹ × 757¹ × 5¹ × 23¹ × 79¹
LCM(72672,72680) = 660225120