What is the Least Common Multiple of 28239 and 28257?

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 28239 and 28257 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 28239 and 28257, than apply into the LCM equation.

GCF(28239,28257) = 3
LCM(28239,28257) = ( 28239 × 28257) / 3
LCM(28239,28257) = 797949423 / 3
LCM(28239,28257) = 265983141

Least Common Multiple (LCM) of 28239 and 28257 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 28239 and 28257. First we will calculate the prime factors of 28239 and 28257.

Prime Factorization of 28239

Prime Factorization of 28257

Now multiplying the highest exponent prime factors to calculate the LCM of 28239 and 28257.

LCM(28239,28257) = 3¹ × 9413¹ × 9419¹
LCM(28239,28257) = 265983141