What is the Least Common Multiple of 502 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 502 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 502 and 512, than apply into the LCM equation.

GCF(502,512) = 2
LCM(502,512) = ( 502 × 512) / 2
LCM(502,512) = 257024 / 2
LCM(502,512) = 128512

Least Common Multiple (LCM) of 502 and 512 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 502 and 512. First we will calculate the prime factors of 502 and 512.

Prime Factorization of 502

Prime Factorization of 512

Now multiplying the highest exponent prime factors to calculate the LCM of 502 and 512.

LCM(502,512) = 2⁹ × 251¹
LCM(502,512) = 128512