What is the Least Common Multiple of 1391 and 1404?

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 1391 and 1404 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1391 and 1404, than apply into the LCM equation.

GCF(1391,1404) = 13
LCM(1391,1404) = ( 1391 × 1404) / 13
LCM(1391,1404) = 1952964 / 13
LCM(1391,1404) = 150228

Least Common Multiple (LCM) of 1391 and 1404 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 1391 and 1404. First we will calculate the prime factors of 1391 and 1404.

Prime Factorization of 1391

Prime Factorization of 1404

Now multiplying the highest exponent prime factors to calculate the LCM of 1391 and 1404.

LCM(1391,1404) = 13¹ × 107¹ × 2² × 3³
LCM(1391,1404) = 150228