What is the Least Common Multiple of 72291 and 72309?

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 72291 and 72309 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 72291 and 72309, than apply into the LCM equation.

GCF(72291,72309) = 3
LCM(72291,72309) = ( 72291 × 72309) / 3
LCM(72291,72309) = 5227289919 / 3
LCM(72291,72309) = 1742429973

Least Common Multiple (LCM) of 72291 and 72309 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 72291 and 72309. First we will calculate the prime factors of 72291 and 72309.

Prime Factorization of 72291

Prime Factorization of 72309

Now multiplying the highest exponent prime factors to calculate the LCM of 72291 and 72309.

LCM(72291,72309) = 3¹ × 24097¹ × 24103¹
LCM(72291,72309) = 1742429973