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What is the Least Common Multiple of 39921 and 39929?

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 39921 and 39929 is 1594005609.

LCM(39921,39929) = 1594005609

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Least Common Multiple of 39921 and 39929 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 39921 and 39929, than apply into the LCM equation.

GCF(39921,39929) = 1
LCM(39921,39929) = ( 39921 × 39929) / 1
LCM(39921,39929) = 1594005609 / 1
LCM(39921,39929) = 1594005609

Least Common Multiple (LCM) of 39921 and 39929 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 39921 and 39929. First we will calculate the prime factors of 39921 and 39929.

Prime Factorization of 39921

Prime factors of 39921 are 3, 7, 1901. Prime factorization of 39921 in exponential form is:

39921 = 31 × 71 × 19011

Prime Factorization of 39929

Prime factors of 39929 are 39929. Prime factorization of 39929 in exponential form is:

39929 = 399291

Now multiplying the highest exponent prime factors to calculate the LCM of 39921 and 39929.

LCM(39921,39929) = 31 × 71 × 19011 × 399291
LCM(39921,39929) = 1594005609