What is the Least Common Multiple of 16491 and 16509?

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 16491 and 16509 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 16491 and 16509, than apply into the LCM equation.

GCF(16491,16509) = 3
LCM(16491,16509) = ( 16491 × 16509) / 3
LCM(16491,16509) = 272249919 / 3
LCM(16491,16509) = 90749973

Least Common Multiple (LCM) of 16491 and 16509 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 16491 and 16509. First we will calculate the prime factors of 16491 and 16509.

Prime Factorization of 16491

Prime Factorization of 16509

Now multiplying the highest exponent prime factors to calculate the LCM of 16491 and 16509.

LCM(16491,16509) = 3¹ × 23¹ × 239¹ × 5503¹
LCM(16491,16509) = 90749973