What is the Least Common Multiple of 64516 and 64520?

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 64516 and 64520 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 64516 and 64520, than apply into the LCM equation.

GCF(64516,64520) = 4
LCM(64516,64520) = ( 64516 × 64520) / 4
LCM(64516,64520) = 4162572320 / 4
LCM(64516,64520) = 1040643080

Least Common Multiple (LCM) of 64516 and 64520 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 64516 and 64520. First we will calculate the prime factors of 64516 and 64520.

Prime Factorization of 64516

Prime Factorization of 64520

Now multiplying the highest exponent prime factors to calculate the LCM of 64516 and 64520.

LCM(64516,64520) = 2³ × 127² × 5¹ × 1613¹
LCM(64516,64520) = 1040643080