What is the Least Common Multiple of 19999 and 20019?

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 19999 and 20019 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 19999 and 20019, than apply into the LCM equation.

GCF(19999,20019) = 1
LCM(19999,20019) = ( 19999 × 20019) / 1
LCM(19999,20019) = 400359981 / 1
LCM(19999,20019) = 400359981

Least Common Multiple (LCM) of 19999 and 20019 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 19999 and 20019. First we will calculate the prime factors of 19999 and 20019.

Prime Factorization of 19999

Prime Factorization of 20019

Now multiplying the highest exponent prime factors to calculate the LCM of 19999 and 20019.

LCM(19999,20019) = 7¹ × 2857¹ × 3¹ × 6673¹
LCM(19999,20019) = 400359981