What is the Least Common Multiple of 81274 and 81288?

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 81274 and 81288 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 81274 and 81288, than apply into the LCM equation.

GCF(81274,81288) = 2
LCM(81274,81288) = ( 81274 × 81288) / 2
LCM(81274,81288) = 6606600912 / 2
LCM(81274,81288) = 3303300456

Least Common Multiple (LCM) of 81274 and 81288 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 81274 and 81288. First we will calculate the prime factors of 81274 and 81288.

Prime Factorization of 81274

Prime Factorization of 81288

Now multiplying the highest exponent prime factors to calculate the LCM of 81274 and 81288.

LCM(81274,81288) = 2³ × 40637¹ × 3² × 1129¹
LCM(81274,81288) = 3303300456