What is the Least Common Multiple of 82170 and 82185?

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 82170 and 82185 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 82170 and 82185, than apply into the LCM equation.

GCF(82170,82185) = 15
LCM(82170,82185) = ( 82170 × 82185) / 15
LCM(82170,82185) = 6753141450 / 15
LCM(82170,82185) = 450209430

Least Common Multiple (LCM) of 82170 and 82185 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 82170 and 82185. First we will calculate the prime factors of 82170 and 82185.

Prime Factorization of 82170

Prime Factorization of 82185

Now multiplying the highest exponent prime factors to calculate the LCM of 82170 and 82185.

LCM(82170,82185) = 2¹ × 3² × 5¹ × 11¹ × 83¹ × 5479¹
LCM(82170,82185) = 450209430