What is the Least Common Multiple of 72557 and 72561?

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 72557 and 72561 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 72557 and 72561, than apply into the LCM equation.

GCF(72557,72561) = 1
LCM(72557,72561) = ( 72557 × 72561) / 1
LCM(72557,72561) = 5264808477 / 1
LCM(72557,72561) = 5264808477

Least Common Multiple (LCM) of 72557 and 72561 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 72557 and 72561. First we will calculate the prime factors of 72557 and 72561.

Prime Factorization of 72557

Prime Factorization of 72561

Now multiplying the highest exponent prime factors to calculate the LCM of 72557 and 72561.

LCM(72557,72561) = 37² × 53¹ × 3¹ × 19² × 67¹
LCM(72557,72561) = 5264808477