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What is the Least Common Multiple of 39765 and 39782?

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 39765 and 39782 is 1581931230.

LCM(39765,39782) = 1581931230

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Least Common Multiple of 39765 and 39782 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 39765 and 39782, than apply into the LCM equation.

GCF(39765,39782) = 1
LCM(39765,39782) = ( 39765 × 39782) / 1
LCM(39765,39782) = 1581931230 / 1
LCM(39765,39782) = 1581931230

Least Common Multiple (LCM) of 39765 and 39782 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 39765 and 39782. First we will calculate the prime factors of 39765 and 39782.

Prime Factorization of 39765

Prime factors of 39765 are 3, 5, 11, 241. Prime factorization of 39765 in exponential form is:

39765 = 31 × 51 × 111 × 2411

Prime Factorization of 39782

Prime factors of 39782 are 2, 19891. Prime factorization of 39782 in exponential form is:

39782 = 21 × 198911

Now multiplying the highest exponent prime factors to calculate the LCM of 39765 and 39782.

LCM(39765,39782) = 31 × 51 × 111 × 2411 × 21 × 198911
LCM(39765,39782) = 1581931230