What is the Least Common Multiple of 87660 and 87664?

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 87660 and 87664 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 87660 and 87664, than apply into the LCM equation.

GCF(87660,87664) = 4
LCM(87660,87664) = ( 87660 × 87664) / 4
LCM(87660,87664) = 7684626240 / 4
LCM(87660,87664) = 1921156560

Least Common Multiple (LCM) of 87660 and 87664 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 87660 and 87664. First we will calculate the prime factors of 87660 and 87664.

Prime Factorization of 87660

Prime Factorization of 87664

Now multiplying the highest exponent prime factors to calculate the LCM of 87660 and 87664.

LCM(87660,87664) = 2⁴ × 3² × 5¹ × 487¹ × 5479¹
LCM(87660,87664) = 1921156560