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What is the Least Common Multiple of 12639 and 12644?

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 12639 and 12644 is 159807516.

LCM(12639,12644) = 159807516

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Least Common Multiple of 12639 and 12644 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 12639 and 12644, than apply into the LCM equation.

GCF(12639,12644) = 1
LCM(12639,12644) = ( 12639 × 12644) / 1
LCM(12639,12644) = 159807516 / 1
LCM(12639,12644) = 159807516

Least Common Multiple (LCM) of 12639 and 12644 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 12639 and 12644. First we will calculate the prime factors of 12639 and 12644.

Prime Factorization of 12639

Prime factors of 12639 are 3, 11, 383. Prime factorization of 12639 in exponential form is:

12639 = 31 × 111 × 3831

Prime Factorization of 12644

Prime factors of 12644 are 2, 29, 109. Prime factorization of 12644 in exponential form is:

12644 = 22 × 291 × 1091

Now multiplying the highest exponent prime factors to calculate the LCM of 12639 and 12644.

LCM(12639,12644) = 31 × 111 × 3831 × 22 × 291 × 1091
LCM(12639,12644) = 159807516