What is the Least Common Multiple of 12680 and 12686?

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 12680 and 12686 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 12680 and 12686, than apply into the LCM equation.

GCF(12680,12686) = 2
LCM(12680,12686) = ( 12680 × 12686) / 2
LCM(12680,12686) = 160858480 / 2
LCM(12680,12686) = 80429240

Least Common Multiple (LCM) of 12680 and 12686 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 12680 and 12686. First we will calculate the prime factors of 12680 and 12686.

Prime Factorization of 12680

Prime Factorization of 12686

Now multiplying the highest exponent prime factors to calculate the LCM of 12680 and 12686.

LCM(12680,12686) = 2³ × 5¹ × 317¹ × 6343¹
LCM(12680,12686) = 80429240