What is the Least Common Multiple of 500 and 512?

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 500 and 512 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 500 and 512, than apply into the LCM equation.

GCF(500,512) = 4
LCM(500,512) = ( 500 × 512) / 4
LCM(500,512) = 256000 / 4
LCM(500,512) = 64000

Least Common Multiple (LCM) of 500 and 512 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 500 and 512. First we will calculate the prime factors of 500 and 512.

Prime Factorization of 500

Prime Factorization of 512

Now multiplying the highest exponent prime factors to calculate the LCM of 500 and 512.

LCM(500,512) = 2⁹ × 5³
LCM(500,512) = 64000