What is the Least Common Multiple of 18203 and 18209?

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 18203 and 18209 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 18203 and 18209, than apply into the LCM equation.

GCF(18203,18209) = 1
LCM(18203,18209) = ( 18203 × 18209) / 1
LCM(18203,18209) = 331458427 / 1
LCM(18203,18209) = 331458427

Least Common Multiple (LCM) of 18203 and 18209 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 18203 and 18209. First we will calculate the prime factors of 18203 and 18209.

Prime Factorization of 18203

Prime Factorization of 18209

Now multiplying the highest exponent prime factors to calculate the LCM of 18203 and 18209.

LCM(18203,18209) = 109¹ × 167¹ × 131¹ × 139¹
LCM(18203,18209) = 331458427