What is the Least Common Multiple of 20081 and 20087?

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 20081 and 20087 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 20081 and 20087, than apply into the LCM equation.

GCF(20081,20087) = 1
LCM(20081,20087) = ( 20081 × 20087) / 1
LCM(20081,20087) = 403367047 / 1
LCM(20081,20087) = 403367047

Least Common Multiple (LCM) of 20081 and 20087 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 20081 and 20087. First we will calculate the prime factors of 20081 and 20087.

Prime Factorization of 20081

Prime Factorization of 20087

Now multiplying the highest exponent prime factors to calculate the LCM of 20081 and 20087.

LCM(20081,20087) = 43¹ × 467¹ × 53¹ × 379¹
LCM(20081,20087) = 403367047