GCF and LCM Calculator Logo

What is the Least Common Multiple of 18489 and 18509?

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 (LCM) of 18489 and 18509 is 342212901.

LCM(18489,18509) = 342212901

LCM Calculator and
and

Least Common Multiple of 18489 and 18509 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 18489 and 18509, than apply into the LCM equation.

GCF(18489,18509) = 1
LCM(18489,18509) = ( 18489 × 18509) / 1
LCM(18489,18509) = 342212901 / 1
LCM(18489,18509) = 342212901

Least Common Multiple (LCM) of 18489 and 18509 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 18489 and 18509. First we will calculate the prime factors of 18489 and 18509.

Prime Factorization of 18489

Prime factors of 18489 are 3, 6163. Prime factorization of 18489 in exponential form is:

18489 = 31 × 61631

Prime Factorization of 18509

Prime factors of 18509 are 83, 223. Prime factorization of 18509 in exponential form is:

18509 = 831 × 2231

Now multiplying the highest exponent prime factors to calculate the LCM of 18489 and 18509.

LCM(18489,18509) = 31 × 61631 × 831 × 2231
LCM(18489,18509) = 342212901