What is the Least Common Multiple of 87690 and 87710?

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 87690 and 87710 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 87690 and 87710, than apply into the LCM equation.

GCF(87690,87710) = 10
LCM(87690,87710) = ( 87690 × 87710) / 10
LCM(87690,87710) = 7691289900 / 10
LCM(87690,87710) = 769128990

Least Common Multiple (LCM) of 87690 and 87710 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 87690 and 87710. First we will calculate the prime factors of 87690 and 87710.

Prime Factorization of 87690

Prime Factorization of 87710

Now multiplying the highest exponent prime factors to calculate the LCM of 87690 and 87710.

LCM(87690,87710) = 2¹ × 3¹ × 5¹ × 37¹ × 79¹ × 7² × 179¹
LCM(87690,87710) = 769128990