What is the Least Common Multiple of 20918 and 20922?

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 20918 and 20922 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 20918 and 20922, than apply into the LCM equation.

GCF(20918,20922) = 2
LCM(20918,20922) = ( 20918 × 20922) / 2
LCM(20918,20922) = 437646396 / 2
LCM(20918,20922) = 218823198

Least Common Multiple (LCM) of 20918 and 20922 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 20918 and 20922. First we will calculate the prime factors of 20918 and 20922.

Prime Factorization of 20918

Prime Factorization of 20922

Now multiplying the highest exponent prime factors to calculate the LCM of 20918 and 20922.

LCM(20918,20922) = 2¹ × 10459¹ × 3¹ × 11¹ × 317¹
LCM(20918,20922) = 218823198