What is the Least Common Multiple of 19889 and 19897?

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 19889 and 19897 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 19889 and 19897, than apply into the LCM equation.

GCF(19889,19897) = 1
LCM(19889,19897) = ( 19889 × 19897) / 1
LCM(19889,19897) = 395731433 / 1
LCM(19889,19897) = 395731433

Least Common Multiple (LCM) of 19889 and 19897 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 19889 and 19897. First we will calculate the prime factors of 19889 and 19897.

Prime Factorization of 19889

Prime Factorization of 19897

Now multiplying the highest exponent prime factors to calculate the LCM of 19889 and 19897.

LCM(19889,19897) = 19889¹ × 101¹ × 197¹
LCM(19889,19897) = 395731433