What is the Least Common Multiple of 21087 and 21093?

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 21087 and 21093 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 21087 and 21093, than apply into the LCM equation.

GCF(21087,21093) = 3
LCM(21087,21093) = ( 21087 × 21093) / 3
LCM(21087,21093) = 444788091 / 3
LCM(21087,21093) = 148262697

Least Common Multiple (LCM) of 21087 and 21093 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 21087 and 21093. First we will calculate the prime factors of 21087 and 21093.

Prime Factorization of 21087

Prime Factorization of 21093

Now multiplying the highest exponent prime factors to calculate the LCM of 21087 and 21093.

LCM(21087,21093) = 3³ × 11¹ × 71¹ × 79¹ × 89¹
LCM(21087,21093) = 148262697