What is the Least Common Multiple of 40378 and 40389?

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 40378 and 40389 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 40378 and 40389, than apply into the LCM equation.

GCF(40378,40389) = 1
LCM(40378,40389) = ( 40378 × 40389) / 1
LCM(40378,40389) = 1630827042 / 1
LCM(40378,40389) = 1630827042

Least Common Multiple (LCM) of 40378 and 40389 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 40378 and 40389. First we will calculate the prime factors of 40378 and 40389.

Prime Factorization of 40378

Prime Factorization of 40389

Now multiplying the highest exponent prime factors to calculate the LCM of 40378 and 40389.

LCM(40378,40389) = 2¹ × 13¹ × 1553¹ × 3¹ × 13463¹
LCM(40378,40389) = 1630827042