What is the Least Common Multiple of 39894 and 39898?

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 39894 and 39898 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 39894 and 39898, than apply into the LCM equation.

GCF(39894,39898) = 2
LCM(39894,39898) = ( 39894 × 39898) / 2
LCM(39894,39898) = 1591690812 / 2
LCM(39894,39898) = 795845406

Least Common Multiple (LCM) of 39894 and 39898 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 39894 and 39898. First we will calculate the prime factors of 39894 and 39898.

Prime Factorization of 39894

Prime Factorization of 39898

Now multiplying the highest exponent prime factors to calculate the LCM of 39894 and 39898.

LCM(39894,39898) = 2¹ × 3¹ × 61¹ × 109¹ × 19949¹
LCM(39894,39898) = 795845406