What is the Least Common Multiple of 30721 and 30731?

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 30721 and 30731 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 30721 and 30731, than apply into the LCM equation.

GCF(30721,30731) = 1
LCM(30721,30731) = ( 30721 × 30731) / 1
LCM(30721,30731) = 944087051 / 1
LCM(30721,30731) = 944087051

Least Common Multiple (LCM) of 30721 and 30731 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 30721 and 30731. First we will calculate the prime factors of 30721 and 30731.

Prime Factorization of 30721

Prime Factorization of 30731

Now multiplying the highest exponent prime factors to calculate the LCM of 30721 and 30731.

LCM(30721,30731) = 31¹ × 991¹ × 79¹ × 389¹
LCM(30721,30731) = 944087051