What is the Least Common Multiple of 18468 and 18478?

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 18468 and 18478 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 18468 and 18478, than apply into the LCM equation.

GCF(18468,18478) = 2
LCM(18468,18478) = ( 18468 × 18478) / 2
LCM(18468,18478) = 341251704 / 2
LCM(18468,18478) = 170625852

Least Common Multiple (LCM) of 18468 and 18478 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 18468 and 18478. First we will calculate the prime factors of 18468 and 18478.

Prime Factorization of 18468

Prime Factorization of 18478

Now multiplying the highest exponent prime factors to calculate the LCM of 18468 and 18478.

LCM(18468,18478) = 2² × 3⁵ × 19¹ × 9239¹
LCM(18468,18478) = 170625852