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What is the Least Common Multiple of 39788 and 39805?

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 39788 and 39805 is 1583761340.

LCM(39788,39805) = 1583761340

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Least Common Multiple of 39788 and 39805 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 39788 and 39805, than apply into the LCM equation.

GCF(39788,39805) = 1
LCM(39788,39805) = ( 39788 × 39805) / 1
LCM(39788,39805) = 1583761340 / 1
LCM(39788,39805) = 1583761340

Least Common Multiple (LCM) of 39788 and 39805 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 39788 and 39805. First we will calculate the prime factors of 39788 and 39805.

Prime Factorization of 39788

Prime factors of 39788 are 2, 7, 29. Prime factorization of 39788 in exponential form is:

39788 = 22 × 73 × 291

Prime Factorization of 39805

Prime factors of 39805 are 5, 19, 419. Prime factorization of 39805 in exponential form is:

39805 = 51 × 191 × 4191

Now multiplying the highest exponent prime factors to calculate the LCM of 39788 and 39805.

LCM(39788,39805) = 22 × 73 × 291 × 51 × 191 × 4191
LCM(39788,39805) = 1583761340