What is the Least Common Multiple of 20103 and 20111?

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 20103 and 20111 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 20103 and 20111, than apply into the LCM equation.

GCF(20103,20111) = 1
LCM(20103,20111) = ( 20103 × 20111) / 1
LCM(20103,20111) = 404291433 / 1
LCM(20103,20111) = 404291433

Least Common Multiple (LCM) of 20103 and 20111 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 20103 and 20111. First we will calculate the prime factors of 20103 and 20111.

Prime Factorization of 20103

Prime Factorization of 20111

Now multiplying the highest exponent prime factors to calculate the LCM of 20103 and 20111.

LCM(20103,20111) = 3¹ × 6701¹ × 7¹ × 13² × 17¹
LCM(20103,20111) = 404291433