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What is the Least Common Multiple of 12656 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 12656 and 12666 is 80150448.

LCM(12656,12666) = 80150448

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Least Common Multiple of 12656 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 12656 and 12666, than apply into the LCM equation.

GCF(12656,12666) = 2
LCM(12656,12666) = ( 12656 × 12666) / 2
LCM(12656,12666) = 160300896 / 2
LCM(12656,12666) = 80150448

Least Common Multiple (LCM) of 12656 and 12666 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 12656 and 12666. First we will calculate the prime factors of 12656 and 12666.

Prime Factorization of 12656

Prime factors of 12656 are 2, 7, 113. Prime factorization of 12656 in exponential form is:

12656 = 24 × 71 × 1131

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 12656 and 12666.

LCM(12656,12666) = 24 × 71 × 1131 × 31 × 21111
LCM(12656,12666) = 80150448