What is the Least Common Multiple of 87744 and 87756?

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 87744 and 87756 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 87744 and 87756, than apply into the LCM equation.

GCF(87744,87756) = 12
LCM(87744,87756) = ( 87744 × 87756) / 12
LCM(87744,87756) = 7700062464 / 12
LCM(87744,87756) = 641671872

Least Common Multiple (LCM) of 87744 and 87756 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 87744 and 87756. First we will calculate the prime factors of 87744 and 87756.

Prime Factorization of 87744

Prime Factorization of 87756

Now multiplying the highest exponent prime factors to calculate the LCM of 87744 and 87756.

LCM(87744,87756) = 2⁶ × 3¹ × 457¹ × 71¹ × 103¹
LCM(87744,87756) = 641671872