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What is the Least Common Multiple of 12678 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 (LCM) of 12678 and 12698 is 80492622.

LCM(12678,12698) = 80492622

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Least Common Multiple of 12678 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 12678 and 12698, than apply into the LCM equation.

GCF(12678,12698) = 2
LCM(12678,12698) = ( 12678 × 12698) / 2
LCM(12678,12698) = 160985244 / 2
LCM(12678,12698) = 80492622

Least Common Multiple (LCM) of 12678 and 12698 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 12678 and 12698. First we will calculate the prime factors of 12678 and 12698.

Prime Factorization of 12678

Prime factors of 12678 are 2, 3, 2113. Prime factorization of 12678 in exponential form is:

12678 = 21 × 31 × 21131

Prime Factorization of 12698

Prime factors of 12698 are 2, 7, 907. Prime factorization of 12698 in exponential form is:

12698 = 21 × 71 × 9071

Now multiplying the highest exponent prime factors to calculate the LCM of 12678 and 12698.

LCM(12678,12698) = 21 × 31 × 21131 × 71 × 9071
LCM(12678,12698) = 80492622