What is the Least Common Multiple of 4509 and 4515?

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 4509 and 4515 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 4509 and 4515, than apply into the LCM equation.

GCF(4509,4515) = 3
LCM(4509,4515) = ( 4509 × 4515) / 3
LCM(4509,4515) = 20358135 / 3
LCM(4509,4515) = 6786045

Least Common Multiple (LCM) of 4509 and 4515 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 4509 and 4515. First we will calculate the prime factors of 4509 and 4515.

Prime Factorization of 4509

Prime Factorization of 4515

Now multiplying the highest exponent prime factors to calculate the LCM of 4509 and 4515.

LCM(4509,4515) = 3³ × 167¹ × 5¹ × 7¹ × 43¹
LCM(4509,4515) = 6786045