What is the Least Common Multiple of 15805 and 15817?

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 15805 and 15817 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 15805 and 15817, than apply into the LCM equation.

GCF(15805,15817) = 1
LCM(15805,15817) = ( 15805 × 15817) / 1
LCM(15805,15817) = 249987685 / 1
LCM(15805,15817) = 249987685

Least Common Multiple (LCM) of 15805 and 15817 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 15805 and 15817. First we will calculate the prime factors of 15805 and 15817.

Prime Factorization of 15805

Prime Factorization of 15817

Now multiplying the highest exponent prime factors to calculate the LCM of 15805 and 15817.

LCM(15805,15817) = 5¹ × 29¹ × 109¹ × 15817¹
LCM(15805,15817) = 249987685