What is the Least Common Multiple of 18181 and 18191?

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 18181 and 18191 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 18181 and 18191, than apply into the LCM equation.

GCF(18181,18191) = 1
LCM(18181,18191) = ( 18181 × 18191) / 1
LCM(18181,18191) = 330730571 / 1
LCM(18181,18191) = 330730571

Least Common Multiple (LCM) of 18181 and 18191 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 18181 and 18191. First we will calculate the prime factors of 18181 and 18191.

Prime Factorization of 18181

Prime Factorization of 18191

Now multiplying the highest exponent prime factors to calculate the LCM of 18181 and 18191.

LCM(18181,18191) = 18181¹ × 18191¹
LCM(18181,18191) = 330730571