What is the Least Common Multiple of 2403 and 2418?

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 2403 and 2418 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 2403 and 2418, than apply into the LCM equation.

GCF(2403,2418) = 3
LCM(2403,2418) = ( 2403 × 2418) / 3
LCM(2403,2418) = 5810454 / 3
LCM(2403,2418) = 1936818

Least Common Multiple (LCM) of 2403 and 2418 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 2403 and 2418. First we will calculate the prime factors of 2403 and 2418.

Prime Factorization of 2403

Prime Factorization of 2418

Now multiplying the highest exponent prime factors to calculate the LCM of 2403 and 2418.

LCM(2403,2418) = 3³ × 89¹ × 2¹ × 13¹ × 31¹
LCM(2403,2418) = 1936818