What is the Least Common Multiple of 72398 and 72418?

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 72398 and 72418 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 72398 and 72418, than apply into the LCM equation.

GCF(72398,72418) = 2
LCM(72398,72418) = ( 72398 × 72418) / 2
LCM(72398,72418) = 5242918364 / 2
LCM(72398,72418) = 2621459182

Least Common Multiple (LCM) of 72398 and 72418 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 72398 and 72418. First we will calculate the prime factors of 72398 and 72418.

Prime Factorization of 72398

Prime Factorization of 72418

Now multiplying the highest exponent prime factors to calculate the LCM of 72398 and 72418.

LCM(72398,72418) = 2¹ × 53¹ × 683¹ × 36209¹
LCM(72398,72418) = 2621459182