What is the Least Common Multiple of 81655 and 81675?

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 81655 and 81675 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 81655 and 81675, than apply into the LCM equation.

GCF(81655,81675) = 5
LCM(81655,81675) = ( 81655 × 81675) / 5
LCM(81655,81675) = 6669172125 / 5
LCM(81655,81675) = 1333834425

Least Common Multiple (LCM) of 81655 and 81675 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 81655 and 81675. First we will calculate the prime factors of 81655 and 81675.

Prime Factorization of 81655

Prime Factorization of 81675

Now multiplying the highest exponent prime factors to calculate the LCM of 81655 and 81675.

LCM(81655,81675) = 5² × 7¹ × 2333¹ × 3³ × 11²
LCM(81655,81675) = 1333834425