What is the Least Common Multiple of 2605 and 2618?

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 2605 and 2618 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 2605 and 2618, than apply into the LCM equation.

GCF(2605,2618) = 1
LCM(2605,2618) = ( 2605 × 2618) / 1
LCM(2605,2618) = 6819890 / 1
LCM(2605,2618) = 6819890

Least Common Multiple (LCM) of 2605 and 2618 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 2605 and 2618. First we will calculate the prime factors of 2605 and 2618.

Prime Factorization of 2605

Prime Factorization of 2618

Now multiplying the highest exponent prime factors to calculate the LCM of 2605 and 2618.

LCM(2605,2618) = 5¹ × 521¹ × 2¹ × 7¹ × 11¹ × 17¹
LCM(2605,2618) = 6819890