What is the Least Common Multiple of 18198 and 18218?

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 18198 and 18218 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 18198 and 18218, than apply into the LCM equation.

GCF(18198,18218) = 2
LCM(18198,18218) = ( 18198 × 18218) / 2
LCM(18198,18218) = 331531164 / 2
LCM(18198,18218) = 165765582

Least Common Multiple (LCM) of 18198 and 18218 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 18198 and 18218. First we will calculate the prime factors of 18198 and 18218.

Prime Factorization of 18198

Prime Factorization of 18218

Now multiplying the highest exponent prime factors to calculate the LCM of 18198 and 18218.

LCM(18198,18218) = 2¹ × 3³ × 337¹ × 9109¹
LCM(18198,18218) = 165765582