What is the Least Common Multiple of 64221 and 64239?

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 64221 and 64239 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 64221 and 64239, than apply into the LCM equation.

GCF(64221,64239) = 3
LCM(64221,64239) = ( 64221 × 64239) / 3
LCM(64221,64239) = 4125492819 / 3
LCM(64221,64239) = 1375164273

Least Common Multiple (LCM) of 64221 and 64239 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 64221 and 64239. First we will calculate the prime factors of 64221 and 64239.

Prime Factorization of 64221

Prime Factorization of 64239

Now multiplying the highest exponent prime factors to calculate the LCM of 64221 and 64239.

LCM(64221,64239) = 3¹ × 21407¹ × 7² × 19¹ × 23¹
LCM(64221,64239) = 1375164273