What is the Least Common Multiple of 19821 and 19837?

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 19821 and 19837 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 19821 and 19837, than apply into the LCM equation.

GCF(19821,19837) = 1
LCM(19821,19837) = ( 19821 × 19837) / 1
LCM(19821,19837) = 393189177 / 1
LCM(19821,19837) = 393189177

Least Common Multiple (LCM) of 19821 and 19837 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 19821 and 19837. First we will calculate the prime factors of 19821 and 19837.

Prime Factorization of 19821

Prime Factorization of 19837

Now multiplying the highest exponent prime factors to calculate the LCM of 19821 and 19837.

LCM(19821,19837) = 3¹ × 6607¹ × 83¹ × 239¹
LCM(19821,19837) = 393189177