What is the Least Common Multiple of 28503 and 28515?

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 28503 and 28515 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 28503 and 28515, than apply into the LCM equation.

GCF(28503,28515) = 3
LCM(28503,28515) = ( 28503 × 28515) / 3
LCM(28503,28515) = 812763045 / 3
LCM(28503,28515) = 270921015

Least Common Multiple (LCM) of 28503 and 28515 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 28503 and 28515. First we will calculate the prime factors of 28503 and 28515.

Prime Factorization of 28503

Prime Factorization of 28515

Now multiplying the highest exponent prime factors to calculate the LCM of 28503 and 28515.

LCM(28503,28515) = 3² × 3167¹ × 5¹ × 1901¹
LCM(28503,28515) = 270921015