What is the Least Common Multiple of 18909 and 18913?

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 18909 and 18913 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 18909 and 18913, than apply into the LCM equation.

GCF(18909,18913) = 1
LCM(18909,18913) = ( 18909 × 18913) / 1
LCM(18909,18913) = 357625917 / 1
LCM(18909,18913) = 357625917

Least Common Multiple (LCM) of 18909 and 18913 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 18909 and 18913. First we will calculate the prime factors of 18909 and 18913.

Prime Factorization of 18909

Prime Factorization of 18913

Now multiplying the highest exponent prime factors to calculate the LCM of 18909 and 18913.

LCM(18909,18913) = 3² × 11¹ × 191¹ × 18913¹
LCM(18909,18913) = 357625917