What is the Least Common Multiple of 20581 and 20589?

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 20581 and 20589 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 20581 and 20589, than apply into the LCM equation.

GCF(20581,20589) = 1
LCM(20581,20589) = ( 20581 × 20589) / 1
LCM(20581,20589) = 423742209 / 1
LCM(20581,20589) = 423742209

Least Common Multiple (LCM) of 20581 and 20589 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 20581 and 20589. First we will calculate the prime factors of 20581 and 20589.

Prime Factorization of 20581

Prime Factorization of 20589

Now multiplying the highest exponent prime factors to calculate the LCM of 20581 and 20589.

LCM(20581,20589) = 11¹ × 1871¹ × 3¹ × 6863¹
LCM(20581,20589) = 423742209