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What is the Least Common Multiple of 81635 and 81639?

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 81635 and 81639 is 6664599765.

LCM(81635,81639) = 6664599765

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Least Common Multiple of 81635 and 81639 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 81635 and 81639, than apply into the LCM equation.

GCF(81635,81639) = 1
LCM(81635,81639) = ( 81635 × 81639) / 1
LCM(81635,81639) = 6664599765 / 1
LCM(81635,81639) = 6664599765

Least Common Multiple (LCM) of 81635 and 81639 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 81635 and 81639. First we will calculate the prime factors of 81635 and 81639.

Prime Factorization of 81635

Prime factors of 81635 are 5, 29, 563. Prime factorization of 81635 in exponential form is:

81635 = 51 × 291 × 5631

Prime Factorization of 81639

Prime factors of 81639 are 3, 47, 193. Prime factorization of 81639 in exponential form is:

81639 = 32 × 471 × 1931

Now multiplying the highest exponent prime factors to calculate the LCM of 81635 and 81639.

LCM(81635,81639) = 51 × 291 × 5631 × 32 × 471 × 1931
LCM(81635,81639) = 6664599765