What is the Least Common Multiple of 12015 and 12020?

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 12015 and 12020 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 12015 and 12020, than apply into the LCM equation.

GCF(12015,12020) = 5
LCM(12015,12020) = ( 12015 × 12020) / 5
LCM(12015,12020) = 144420300 / 5
LCM(12015,12020) = 28884060

Least Common Multiple (LCM) of 12015 and 12020 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 12015 and 12020. First we will calculate the prime factors of 12015 and 12020.

Prime Factorization of 12015

Prime Factorization of 12020

Now multiplying the highest exponent prime factors to calculate the LCM of 12015 and 12020.

LCM(12015,12020) = 3³ × 5¹ × 89¹ × 2² × 601¹
LCM(12015,12020) = 28884060