What is the Least Common Multiple of 40381 and 40391?

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 40381 and 40391 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 40381 and 40391, than apply into the LCM equation.

GCF(40381,40391) = 1
LCM(40381,40391) = ( 40381 × 40391) / 1
LCM(40381,40391) = 1631028971 / 1
LCM(40381,40391) = 1631028971

Least Common Multiple (LCM) of 40381 and 40391 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 40381 and 40391. First we will calculate the prime factors of 40381 and 40391.

Prime Factorization of 40381

Prime Factorization of 40391

Now multiplying the highest exponent prime factors to calculate the LCM of 40381 and 40391.

LCM(40381,40391) = 11¹ × 3671¹ × 13² × 239¹
LCM(40381,40391) = 1631028971