What is the Least Common Multiple of 39489 and 39509?

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 39489 and 39509 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 39489 and 39509, than apply into the LCM equation.

GCF(39489,39509) = 1
LCM(39489,39509) = ( 39489 × 39509) / 1
LCM(39489,39509) = 1560170901 / 1
LCM(39489,39509) = 1560170901

Least Common Multiple (LCM) of 39489 and 39509 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 39489 and 39509. First we will calculate the prime factors of 39489 and 39509.

Prime Factorization of 39489

Prime Factorization of 39509

Now multiplying the highest exponent prime factors to calculate the LCM of 39489 and 39509.

LCM(39489,39509) = 3¹ × 13163¹ × 39509¹
LCM(39489,39509) = 1560170901