What is the Least Common Multiple of 39543 and 39561?

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 39543 and 39561 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 39543 and 39561, than apply into the LCM equation.

GCF(39543,39561) = 3
LCM(39543,39561) = ( 39543 × 39561) / 3
LCM(39543,39561) = 1564360623 / 3
LCM(39543,39561) = 521453541

Least Common Multiple (LCM) of 39543 and 39561 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 39543 and 39561. First we will calculate the prime factors of 39543 and 39561.

Prime Factorization of 39543

Prime Factorization of 39561

Now multiplying the highest exponent prime factors to calculate the LCM of 39543 and 39561.

LCM(39543,39561) = 3¹ × 7² × 269¹ × 13187¹
LCM(39543,39561) = 521453541