What is the Least Common Multiple of 12690 and 12698?

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 12690 and 12698 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 12690 and 12698, than apply into the LCM equation.

GCF(12690,12698) = 2
LCM(12690,12698) = ( 12690 × 12698) / 2
LCM(12690,12698) = 161137620 / 2
LCM(12690,12698) = 80568810

Least Common Multiple (LCM) of 12690 and 12698 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 12690 and 12698. First we will calculate the prime factors of 12690 and 12698.

Prime Factorization of 12690

Prime Factorization of 12698

Now multiplying the highest exponent prime factors to calculate the LCM of 12690 and 12698.

LCM(12690,12698) = 2¹ × 3³ × 5¹ × 47¹ × 7¹ × 907¹
LCM(12690,12698) = 80568810