What is the Least Common Multiple of 18778 and 18790?

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 18778 and 18790 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 18778 and 18790, than apply into the LCM equation.

GCF(18778,18790) = 2
LCM(18778,18790) = ( 18778 × 18790) / 2
LCM(18778,18790) = 352838620 / 2
LCM(18778,18790) = 176419310

Least Common Multiple (LCM) of 18778 and 18790 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 18778 and 18790. First we will calculate the prime factors of 18778 and 18790.

Prime Factorization of 18778

Prime Factorization of 18790

Now multiplying the highest exponent prime factors to calculate the LCM of 18778 and 18790.

LCM(18778,18790) = 2¹ × 41¹ × 229¹ × 5¹ × 1879¹
LCM(18778,18790) = 176419310