What is the Least Common Multiple of 19821 and 19829?

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 19829 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 19829, than apply into the LCM equation.

GCF(19821,19829) = 1
LCM(19821,19829) = ( 19821 × 19829) / 1
LCM(19821,19829) = 393030609 / 1
LCM(19821,19829) = 393030609

Least Common Multiple (LCM) of 19821 and 19829 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 19821 and 19829. First we will calculate the prime factors of 19821 and 19829.

Prime Factorization of 19821

Prime Factorization of 19829

Now multiplying the highest exponent prime factors to calculate the LCM of 19821 and 19829.

LCM(19821,19829) = 3¹ × 6607¹ × 79¹ × 251¹
LCM(19821,19829) = 393030609