What is the Least Common Multiple of 12646 and 12658?

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 12646 and 12658 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 12646 and 12658, than apply into the LCM equation.

GCF(12646,12658) = 2
LCM(12646,12658) = ( 12646 × 12658) / 2
LCM(12646,12658) = 160073068 / 2
LCM(12646,12658) = 80036534

Least Common Multiple (LCM) of 12646 and 12658 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 12646 and 12658. First we will calculate the prime factors of 12646 and 12658.

Prime Factorization of 12646

Prime Factorization of 12658

Now multiplying the highest exponent prime factors to calculate the LCM of 12646 and 12658.

LCM(12646,12658) = 2¹ × 6323¹ × 6329¹
LCM(12646,12658) = 80036534