What is the Least Common Multiple of 39665 and 39681?

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 39665 and 39681 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 39665 and 39681, than apply into the LCM equation.

GCF(39665,39681) = 1
LCM(39665,39681) = ( 39665 × 39681) / 1
LCM(39665,39681) = 1573946865 / 1
LCM(39665,39681) = 1573946865

Least Common Multiple (LCM) of 39665 and 39681 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 39665 and 39681. First we will calculate the prime factors of 39665 and 39681.

Prime Factorization of 39665

Prime Factorization of 39681

Now multiplying the highest exponent prime factors to calculate the LCM of 39665 and 39681.

LCM(39665,39681) = 5¹ × 7933¹ × 3² × 4409¹
LCM(39665,39681) = 1573946865