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What is the Least Common Multiple of 39783 and 39788?

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 39783 and 39788 is 1582886004.

LCM(39783,39788) = 1582886004

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Least Common Multiple of 39783 and 39788 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 39783 and 39788, than apply into the LCM equation.

GCF(39783,39788) = 1
LCM(39783,39788) = ( 39783 × 39788) / 1
LCM(39783,39788) = 1582886004 / 1
LCM(39783,39788) = 1582886004

Least Common Multiple (LCM) of 39783 and 39788 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 39783 and 39788. First we will calculate the prime factors of 39783 and 39788.

Prime Factorization of 39783

Prime factors of 39783 are 3, 89, 149. Prime factorization of 39783 in exponential form is:

39783 = 31 × 891 × 1491

Prime Factorization of 39788

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

39788 = 22 × 73 × 291

Now multiplying the highest exponent prime factors to calculate the LCM of 39783 and 39788.

LCM(39783,39788) = 31 × 891 × 1491 × 22 × 73 × 291
LCM(39783,39788) = 1582886004