What is the Least Common Multiple of 18687 and 18691?

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 18687 and 18691 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 18687 and 18691, than apply into the LCM equation.

GCF(18687,18691) = 1
LCM(18687,18691) = ( 18687 × 18691) / 1
LCM(18687,18691) = 349278717 / 1
LCM(18687,18691) = 349278717

Least Common Multiple (LCM) of 18687 and 18691 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 18687 and 18691. First we will calculate the prime factors of 18687 and 18691.

Prime Factorization of 18687

Prime Factorization of 18691

Now multiplying the highest exponent prime factors to calculate the LCM of 18687 and 18691.

LCM(18687,18691) = 3¹ × 6229¹ × 18691¹
LCM(18687,18691) = 349278717