What is the Least Common Multiple of 18543 and 18557?

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 18543 and 18557 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 18543 and 18557, than apply into the LCM equation.

GCF(18543,18557) = 7
LCM(18543,18557) = ( 18543 × 18557) / 7
LCM(18543,18557) = 344102451 / 7
LCM(18543,18557) = 49157493

Least Common Multiple (LCM) of 18543 and 18557 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 18543 and 18557. First we will calculate the prime factors of 18543 and 18557.

Prime Factorization of 18543

Prime Factorization of 18557

Now multiplying the highest exponent prime factors to calculate the LCM of 18543 and 18557.

LCM(18543,18557) = 3¹ × 7¹ × 883¹ × 11¹ × 241¹
LCM(18543,18557) = 49157493