What is the Least Common Multiple of 15503 and 15507?

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 15503 and 15507 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 15503 and 15507, than apply into the LCM equation.

GCF(15503,15507) = 1
LCM(15503,15507) = ( 15503 × 15507) / 1
LCM(15503,15507) = 240405021 / 1
LCM(15503,15507) = 240405021

Least Common Multiple (LCM) of 15503 and 15507 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 15503 and 15507. First we will calculate the prime factors of 15503 and 15507.

Prime Factorization of 15503

Prime Factorization of 15507

Now multiplying the highest exponent prime factors to calculate the LCM of 15503 and 15507.

LCM(15503,15507) = 37¹ × 419¹ × 3² × 1723¹
LCM(15503,15507) = 240405021