What is the Least Common Multiple of 20388 and 20404?

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 20388 and 20404 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 20388 and 20404, than apply into the LCM equation.

GCF(20388,20404) = 4
LCM(20388,20404) = ( 20388 × 20404) / 4
LCM(20388,20404) = 415996752 / 4
LCM(20388,20404) = 103999188

Least Common Multiple (LCM) of 20388 and 20404 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 20388 and 20404. First we will calculate the prime factors of 20388 and 20404.

Prime Factorization of 20388

Prime Factorization of 20404

Now multiplying the highest exponent prime factors to calculate the LCM of 20388 and 20404.

LCM(20388,20404) = 2² × 3¹ × 1699¹ × 5101¹
LCM(20388,20404) = 103999188