What is the Least Common Multiple of 31703 and 31721?

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 31703 and 31721 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 31703 and 31721, than apply into the LCM equation.

GCF(31703,31721) = 1
LCM(31703,31721) = ( 31703 × 31721) / 1
LCM(31703,31721) = 1005650863 / 1
LCM(31703,31721) = 1005650863

Least Common Multiple (LCM) of 31703 and 31721 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 31703 and 31721. First we will calculate the prime factors of 31703 and 31721.

Prime Factorization of 31703

Prime Factorization of 31721

Now multiplying the highest exponent prime factors to calculate the LCM of 31703 and 31721.

LCM(31703,31721) = 7² × 647¹ × 31721¹
LCM(31703,31721) = 1005650863