What is the Least Common Multiple of 87160 and 87180?

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 87160 and 87180 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 87160 and 87180, than apply into the LCM equation.

GCF(87160,87180) = 20
LCM(87160,87180) = ( 87160 × 87180) / 20
LCM(87160,87180) = 7598608800 / 20
LCM(87160,87180) = 379930440

Least Common Multiple (LCM) of 87160 and 87180 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 87160 and 87180. First we will calculate the prime factors of 87160 and 87180.

Prime Factorization of 87160

Prime Factorization of 87180

Now multiplying the highest exponent prime factors to calculate the LCM of 87160 and 87180.

LCM(87160,87180) = 2³ × 5¹ × 2179¹ × 3¹ × 1453¹
LCM(87160,87180) = 379930440