What is the Least Common Multiple of 28591 and 28609?

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 28591 and 28609 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 28591 and 28609, than apply into the LCM equation.

GCF(28591,28609) = 1
LCM(28591,28609) = ( 28591 × 28609) / 1
LCM(28591,28609) = 817959919 / 1
LCM(28591,28609) = 817959919

Least Common Multiple (LCM) of 28591 and 28609 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 28591 and 28609. First we will calculate the prime factors of 28591 and 28609.

Prime Factorization of 28591

Prime Factorization of 28609

Now multiplying the highest exponent prime factors to calculate the LCM of 28591 and 28609.

LCM(28591,28609) = 28591¹ × 7¹ × 61¹ × 67¹
LCM(28591,28609) = 817959919