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What is the Least Common Multiple of 39885 and 39892?

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 39885 and 39892 is 1591092420.

LCM(39885,39892) = 1591092420

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Least Common Multiple of 39885 and 39892 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 39885 and 39892, than apply into the LCM equation.

GCF(39885,39892) = 1
LCM(39885,39892) = ( 39885 × 39892) / 1
LCM(39885,39892) = 1591092420 / 1
LCM(39885,39892) = 1591092420

Least Common Multiple (LCM) of 39885 and 39892 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 39885 and 39892. First we will calculate the prime factors of 39885 and 39892.

Prime Factorization of 39885

Prime factors of 39885 are 3, 5, 2659. Prime factorization of 39885 in exponential form is:

39885 = 31 × 51 × 26591

Prime Factorization of 39892

Prime factors of 39892 are 2, 9973. Prime factorization of 39892 in exponential form is:

39892 = 22 × 99731

Now multiplying the highest exponent prime factors to calculate the LCM of 39885 and 39892.

LCM(39885,39892) = 31 × 51 × 26591 × 22 × 99731
LCM(39885,39892) = 1591092420