What is the Least Common Multiple of 21897 and 21911?

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 21897 and 21911 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 21897 and 21911, than apply into the LCM equation.

GCF(21897,21911) = 1
LCM(21897,21911) = ( 21897 × 21911) / 1
LCM(21897,21911) = 479785167 / 1
LCM(21897,21911) = 479785167

Least Common Multiple (LCM) of 21897 and 21911 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 21897 and 21911. First we will calculate the prime factors of 21897 and 21911.

Prime Factorization of 21897

Prime Factorization of 21911

Now multiplying the highest exponent prime factors to calculate the LCM of 21897 and 21911.

LCM(21897,21911) = 3³ × 811¹ × 21911¹
LCM(21897,21911) = 479785167