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What is the Least Common Multiple of 39976 and 39987?

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 39976 and 39987 is 1598520312.

LCM(39976,39987) = 1598520312

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Least Common Multiple of 39976 and 39987 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 39976 and 39987, than apply into the LCM equation.

GCF(39976,39987) = 1
LCM(39976,39987) = ( 39976 × 39987) / 1
LCM(39976,39987) = 1598520312 / 1
LCM(39976,39987) = 1598520312

Least Common Multiple (LCM) of 39976 and 39987 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 39976 and 39987. First we will calculate the prime factors of 39976 and 39987.

Prime Factorization of 39976

Prime factors of 39976 are 2, 19, 263. Prime factorization of 39976 in exponential form is:

39976 = 23 × 191 × 2631

Prime Factorization of 39987

Prime factors of 39987 are 3, 1481. Prime factorization of 39987 in exponential form is:

39987 = 33 × 14811

Now multiplying the highest exponent prime factors to calculate the LCM of 39976 and 39987.

LCM(39976,39987) = 23 × 191 × 2631 × 33 × 14811
LCM(39976,39987) = 1598520312