What is the Least Common Multiple of 18431 and 18451?

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 18431 and 18451 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 18431 and 18451, than apply into the LCM equation.

GCF(18431,18451) = 1
LCM(18431,18451) = ( 18431 × 18451) / 1
LCM(18431,18451) = 340070381 / 1
LCM(18431,18451) = 340070381

Least Common Multiple (LCM) of 18431 and 18451 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 18431 and 18451. First we will calculate the prime factors of 18431 and 18451.

Prime Factorization of 18431

Prime Factorization of 18451

Now multiplying the highest exponent prime factors to calculate the LCM of 18431 and 18451.

LCM(18431,18451) = 7¹ × 2633¹ × 18451¹
LCM(18431,18451) = 340070381