What is the Least Common Multiple of 89781 and 89790?

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 89781 and 89790 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 89781 and 89790, than apply into the LCM equation.

GCF(89781,89790) = 3
LCM(89781,89790) = ( 89781 × 89790) / 3
LCM(89781,89790) = 8061435990 / 3
LCM(89781,89790) = 2687145330

Least Common Multiple (LCM) of 89781 and 89790 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 89781 and 89790. First we will calculate the prime factors of 89781 and 89790.

Prime Factorization of 89781

Prime Factorization of 89790

Now multiplying the highest exponent prime factors to calculate the LCM of 89781 and 89790.

LCM(89781,89790) = 3¹ × 29927¹ × 2¹ × 5¹ × 41¹ × 73¹
LCM(89781,89790) = 2687145330