What is the Least Common Multiple of 40372 and 40390?

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 40372 and 40390 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 40372 and 40390, than apply into the LCM equation.

GCF(40372,40390) = 2
LCM(40372,40390) = ( 40372 × 40390) / 2
LCM(40372,40390) = 1630625080 / 2
LCM(40372,40390) = 815312540

Least Common Multiple (LCM) of 40372 and 40390 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 40372 and 40390. First we will calculate the prime factors of 40372 and 40390.

Prime Factorization of 40372

Prime Factorization of 40390

Now multiplying the highest exponent prime factors to calculate the LCM of 40372 and 40390.

LCM(40372,40390) = 2² × 10093¹ × 5¹ × 7¹ × 577¹
LCM(40372,40390) = 815312540