What is the Least Common Multiple of 12687 and 12691?

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 12687 and 12691 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 12687 and 12691, than apply into the LCM equation.

GCF(12687,12691) = 1
LCM(12687,12691) = ( 12687 × 12691) / 1
LCM(12687,12691) = 161010717 / 1
LCM(12687,12691) = 161010717

Least Common Multiple (LCM) of 12687 and 12691 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 12687 and 12691. First we will calculate the prime factors of 12687 and 12691.

Prime Factorization of 12687

Prime Factorization of 12691

Now multiplying the highest exponent prime factors to calculate the LCM of 12687 and 12691.

LCM(12687,12691) = 3¹ × 4229¹ × 7³ × 37¹
LCM(12687,12691) = 161010717