What is the Least Common Multiple of 18291 and 18309?

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 18291 and 18309 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 18291 and 18309, than apply into the LCM equation.

GCF(18291,18309) = 3
LCM(18291,18309) = ( 18291 × 18309) / 3
LCM(18291,18309) = 334889919 / 3
LCM(18291,18309) = 111629973

Least Common Multiple (LCM) of 18291 and 18309 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 18291 and 18309. First we will calculate the prime factors of 18291 and 18309.

Prime Factorization of 18291

Prime Factorization of 18309

Now multiplying the highest exponent prime factors to calculate the LCM of 18291 and 18309.

LCM(18291,18309) = 3¹ × 7¹ × 13¹ × 67¹ × 17¹ × 359¹
LCM(18291,18309) = 111629973