What is the Least Common Multiple of 39891 and 39897?

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 39891 and 39897 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 39891 and 39897, than apply into the LCM equation.

GCF(39891,39897) = 3
LCM(39891,39897) = ( 39891 × 39897) / 3
LCM(39891,39897) = 1591531227 / 3
LCM(39891,39897) = 530510409

Least Common Multiple (LCM) of 39891 and 39897 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 39891 and 39897. First we will calculate the prime factors of 39891 and 39897.

Prime Factorization of 39891

Prime Factorization of 39897

Now multiplying the highest exponent prime factors to calculate the LCM of 39891 and 39897.

LCM(39891,39897) = 3² × 13297¹ × 11¹ × 13¹ × 31¹
LCM(39891,39897) = 530510409