What is the Least Common Multiple of 15790 and 15810?

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 15790 and 15810 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 15790 and 15810, than apply into the LCM equation.

GCF(15790,15810) = 10
LCM(15790,15810) = ( 15790 × 15810) / 10
LCM(15790,15810) = 249639900 / 10
LCM(15790,15810) = 24963990

Least Common Multiple (LCM) of 15790 and 15810 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 15790 and 15810. First we will calculate the prime factors of 15790 and 15810.

Prime Factorization of 15790

Prime Factorization of 15810

Now multiplying the highest exponent prime factors to calculate the LCM of 15790 and 15810.

LCM(15790,15810) = 2¹ × 5¹ × 1579¹ × 3¹ × 17¹ × 31¹
LCM(15790,15810) = 24963990