What is the Least Common Multiple of 18021 and 18028?

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 18021 and 18028 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 18021 and 18028, than apply into the LCM equation.

GCF(18021,18028) = 1
LCM(18021,18028) = ( 18021 × 18028) / 1
LCM(18021,18028) = 324882588 / 1
LCM(18021,18028) = 324882588

Least Common Multiple (LCM) of 18021 and 18028 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 18021 and 18028. First we will calculate the prime factors of 18021 and 18028.

Prime Factorization of 18021

Prime Factorization of 18028

Now multiplying the highest exponent prime factors to calculate the LCM of 18021 and 18028.

LCM(18021,18028) = 3¹ × 6007¹ × 2² × 4507¹
LCM(18021,18028) = 324882588