What is the Least Common Multiple of 87685 and 87691?

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 87685 and 87691 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 87685 and 87691, than apply into the LCM equation.

GCF(87685,87691) = 1
LCM(87685,87691) = ( 87685 × 87691) / 1
LCM(87685,87691) = 7689185335 / 1
LCM(87685,87691) = 7689185335

Least Common Multiple (LCM) of 87685 and 87691 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 87685 and 87691. First we will calculate the prime factors of 87685 and 87691.

Prime Factorization of 87685

Prime Factorization of 87691

Now multiplying the highest exponent prime factors to calculate the LCM of 87685 and 87691.

LCM(87685,87691) = 5¹ × 13¹ × 19¹ × 71¹ × 87691¹
LCM(87685,87691) = 7689185335