What is the Least Common Multiple of 15591 and 15605?

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 15591 and 15605 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 15591 and 15605, than apply into the LCM equation.

GCF(15591,15605) = 1
LCM(15591,15605) = ( 15591 × 15605) / 1
LCM(15591,15605) = 243297555 / 1
LCM(15591,15605) = 243297555

Least Common Multiple (LCM) of 15591 and 15605 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 15591 and 15605. First we will calculate the prime factors of 15591 and 15605.

Prime Factorization of 15591

Prime Factorization of 15605

Now multiplying the highest exponent prime factors to calculate the LCM of 15591 and 15605.

LCM(15591,15605) = 3¹ × 5197¹ × 5¹ × 3121¹
LCM(15591,15605) = 243297555