What is the Least Common Multiple of 7431 and 7443?

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 7431 and 7443 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 7431 and 7443, than apply into the LCM equation.

GCF(7431,7443) = 3
LCM(7431,7443) = ( 7431 × 7443) / 3
LCM(7431,7443) = 55308933 / 3
LCM(7431,7443) = 18436311

Least Common Multiple (LCM) of 7431 and 7443 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 7431 and 7443. First we will calculate the prime factors of 7431 and 7443.

Prime Factorization of 7431

Prime Factorization of 7443

Now multiplying the highest exponent prime factors to calculate the LCM of 7431 and 7443.

LCM(7431,7443) = 3² × 2477¹ × 827¹
LCM(7431,7443) = 18436311