What is the Least Common Multiple of 16721 and 16731?

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 16721 and 16731 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 16721 and 16731, than apply into the LCM equation.

GCF(16721,16731) = 1
LCM(16721,16731) = ( 16721 × 16731) / 1
LCM(16721,16731) = 279759051 / 1
LCM(16721,16731) = 279759051

Least Common Multiple (LCM) of 16721 and 16731 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 16721 and 16731. First we will calculate the prime factors of 16721 and 16731.

Prime Factorization of 16721

Prime Factorization of 16731

Now multiplying the highest exponent prime factors to calculate the LCM of 16721 and 16731.

LCM(16721,16731) = 23¹ × 727¹ × 3² × 11¹ × 13²
LCM(16721,16731) = 279759051