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What is the Least Common Multiple of 39712 and 39731?

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 39712 and 39731 is 1577797472.

LCM(39712,39731) = 1577797472

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Least Common Multiple of 39712 and 39731 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 39712 and 39731, than apply into the LCM equation.

GCF(39712,39731) = 1
LCM(39712,39731) = ( 39712 × 39731) / 1
LCM(39712,39731) = 1577797472 / 1
LCM(39712,39731) = 1577797472

Least Common Multiple (LCM) of 39712 and 39731 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 39712 and 39731. First we will calculate the prime factors of 39712 and 39731.

Prime Factorization of 39712

Prime factors of 39712 are 2, 17, 73. Prime factorization of 39712 in exponential form is:

39712 = 25 × 171 × 731

Prime Factorization of 39731

Prime factors of 39731 are 67, 593. Prime factorization of 39731 in exponential form is:

39731 = 671 × 5931

Now multiplying the highest exponent prime factors to calculate the LCM of 39712 and 39731.

LCM(39712,39731) = 25 × 171 × 731 × 671 × 5931
LCM(39712,39731) = 1577797472