What is the Least Common Multiple of 39721 and 39731?

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 39721 and 39731 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 39721 and 39731, than apply into the LCM equation.

GCF(39721,39731) = 1
LCM(39721,39731) = ( 39721 × 39731) / 1
LCM(39721,39731) = 1578155051 / 1
LCM(39721,39731) = 1578155051

Least Common Multiple (LCM) of 39721 and 39731 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 39721 and 39731. First we will calculate the prime factors of 39721 and 39731.

Prime Factorization of 39721

Prime Factorization of 39731

Now multiplying the highest exponent prime factors to calculate the LCM of 39721 and 39731.

LCM(39721,39731) = 11¹ × 23¹ × 157¹ × 67¹ × 593¹
LCM(39721,39731) = 1578155051