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What is the Least Common Multiple of 12657 and 12666?

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 12657 and 12666 is 53437854.

LCM(12657,12666) = 53437854

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Least Common Multiple of 12657 and 12666 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 12657 and 12666, than apply into the LCM equation.

GCF(12657,12666) = 3
LCM(12657,12666) = ( 12657 × 12666) / 3
LCM(12657,12666) = 160313562 / 3
LCM(12657,12666) = 53437854

Least Common Multiple (LCM) of 12657 and 12666 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 12657 and 12666. First we will calculate the prime factors of 12657 and 12666.

Prime Factorization of 12657

Prime factors of 12657 are 3, 4219. Prime factorization of 12657 in exponential form is:

12657 = 31 × 42191

Prime Factorization of 12666

Prime factors of 12666 are 2, 3, 2111. Prime factorization of 12666 in exponential form is:

12666 = 21 × 31 × 21111

Now multiplying the highest exponent prime factors to calculate the LCM of 12657 and 12666.

LCM(12657,12666) = 31 × 42191 × 21 × 21111
LCM(12657,12666) = 53437854