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What is the Least Common Multiple of 39742 and 39757?

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 39742 and 39757 is 1580022694.

LCM(39742,39757) = 1580022694

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Least Common Multiple of 39742 and 39757 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 39742 and 39757, than apply into the LCM equation.

GCF(39742,39757) = 1
LCM(39742,39757) = ( 39742 × 39757) / 1
LCM(39742,39757) = 1580022694 / 1
LCM(39742,39757) = 1580022694

Least Common Multiple (LCM) of 39742 and 39757 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 39742 and 39757. First we will calculate the prime factors of 39742 and 39757.

Prime Factorization of 39742

Prime factors of 39742 are 2, 31, 641. Prime factorization of 39742 in exponential form is:

39742 = 21 × 311 × 6411

Prime Factorization of 39757

Prime factors of 39757 are 83, 479. Prime factorization of 39757 in exponential form is:

39757 = 831 × 4791

Now multiplying the highest exponent prime factors to calculate the LCM of 39742 and 39757.

LCM(39742,39757) = 21 × 311 × 6411 × 831 × 4791
LCM(39742,39757) = 1580022694