What is the Least Common Multiple of 15791 and 15809?

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 15791 and 15809 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 15791 and 15809, than apply into the LCM equation.

GCF(15791,15809) = 1
LCM(15791,15809) = ( 15791 × 15809) / 1
LCM(15791,15809) = 249639919 / 1
LCM(15791,15809) = 249639919

Least Common Multiple (LCM) of 15791 and 15809 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 15791 and 15809. First we will calculate the prime factors of 15791 and 15809.

Prime Factorization of 15791

Prime Factorization of 15809

Now multiplying the highest exponent prime factors to calculate the LCM of 15791 and 15809.

LCM(15791,15809) = 15791¹ × 15809¹
LCM(15791,15809) = 249639919