What is the Least Common Multiple of 19999 and 20018?

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 20018 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 20018, than apply into the LCM equation.

GCF(19999,20018) = 1
LCM(19999,20018) = ( 19999 × 20018) / 1
LCM(19999,20018) = 400339982 / 1
LCM(19999,20018) = 400339982

Least Common Multiple (LCM) of 19999 and 20018 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 19999 and 20018. First we will calculate the prime factors of 19999 and 20018.

Prime Factorization of 19999

Prime Factorization of 20018

Now multiplying the highest exponent prime factors to calculate the LCM of 19999 and 20018.

LCM(19999,20018) = 7¹ × 2857¹ × 2¹ × 10009¹
LCM(19999,20018) = 400339982