What is the Least Common Multiple of 72456 and 72472?

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 72456 and 72472 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 72456 and 72472, than apply into the LCM equation.

GCF(72456,72472) = 8
LCM(72456,72472) = ( 72456 × 72472) / 8
LCM(72456,72472) = 5251031232 / 8
LCM(72456,72472) = 656378904

Least Common Multiple (LCM) of 72456 and 72472 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 72456 and 72472. First we will calculate the prime factors of 72456 and 72472.

Prime Factorization of 72456

Prime Factorization of 72472

Now multiplying the highest exponent prime factors to calculate the LCM of 72456 and 72472.

LCM(72456,72472) = 2³ × 3¹ × 3019¹ × 9059¹
LCM(72456,72472) = 656378904