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What is the Least Common Multiple of 39795 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 39795 and 39805 is 316807995.

LCM(39795,39805) = 316807995

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Least Common Multiple of 39795 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 39795 and 39805, than apply into the LCM equation.

GCF(39795,39805) = 5
LCM(39795,39805) = ( 39795 × 39805) / 5
LCM(39795,39805) = 1584039975 / 5
LCM(39795,39805) = 316807995

Least Common Multiple (LCM) of 39795 and 39805 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 39795 and 39805. First we will calculate the prime factors of 39795 and 39805.

Prime Factorization of 39795

Prime factors of 39795 are 3, 5, 7, 379. Prime factorization of 39795 in exponential form is:

39795 = 31 × 51 × 71 × 3791

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 39795 and 39805.

LCM(39795,39805) = 31 × 51 × 71 × 3791 × 191 × 4191
LCM(39795,39805) = 316807995