What is the Least Common Multiple of 39861 and 39873?

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 39861 and 39873 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 39861 and 39873, than apply into the LCM equation.

GCF(39861,39873) = 3
LCM(39861,39873) = ( 39861 × 39873) / 3
LCM(39861,39873) = 1589377653 / 3
LCM(39861,39873) = 529792551

Least Common Multiple (LCM) of 39861 and 39873 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 39861 and 39873. First we will calculate the prime factors of 39861 and 39873.

Prime Factorization of 39861

Prime Factorization of 39873

Now multiplying the highest exponent prime factors to calculate the LCM of 39861 and 39873.

LCM(39861,39873) = 3² × 43¹ × 103¹ × 13291¹
LCM(39861,39873) = 529792551