What is the Least Common Multiple of 15731 and 15739?

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 15731 and 15739 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 15731 and 15739, than apply into the LCM equation.

GCF(15731,15739) = 1
LCM(15731,15739) = ( 15731 × 15739) / 1
LCM(15731,15739) = 247590209 / 1
LCM(15731,15739) = 247590209

Least Common Multiple (LCM) of 15731 and 15739 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 15731 and 15739. First we will calculate the prime factors of 15731 and 15739.

Prime Factorization of 15731

Prime Factorization of 15739

Now multiplying the highest exponent prime factors to calculate the LCM of 15731 and 15739.

LCM(15731,15739) = 15731¹ × 15739¹
LCM(15731,15739) = 247590209