What is the Least Common Multiple of 12704 and 12721?

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 12704 and 12721 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 12704 and 12721, than apply into the LCM equation.

GCF(12704,12721) = 1
LCM(12704,12721) = ( 12704 × 12721) / 1
LCM(12704,12721) = 161607584 / 1
LCM(12704,12721) = 161607584

Least Common Multiple (LCM) of 12704 and 12721 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 12704 and 12721. First we will calculate the prime factors of 12704 and 12721.

Prime Factorization of 12704

Prime Factorization of 12721

Now multiplying the highest exponent prime factors to calculate the LCM of 12704 and 12721.

LCM(12704,12721) = 2⁵ × 397¹ × 12721¹
LCM(12704,12721) = 161607584