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What is the Least Common Multiple of 40631 and 40649?

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 40631 and 40649 is 1651609519.

LCM(40631,40649) = 1651609519

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Least Common Multiple of 40631 and 40649 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 40631 and 40649, than apply into the LCM equation.

GCF(40631,40649) = 1
LCM(40631,40649) = ( 40631 × 40649) / 1
LCM(40631,40649) = 1651609519 / 1
LCM(40631,40649) = 1651609519

Least Common Multiple (LCM) of 40631 and 40649 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 40631 and 40649. First we will calculate the prime factors of 40631 and 40649.

Prime Factorization of 40631

Prime factors of 40631 are 41, 991. Prime factorization of 40631 in exponential form is:

40631 = 411 × 9911

Prime Factorization of 40649

Prime factors of 40649 are 7, 5807. Prime factorization of 40649 in exponential form is:

40649 = 71 × 58071

Now multiplying the highest exponent prime factors to calculate the LCM of 40631 and 40649.

LCM(40631,40649) = 411 × 9911 × 71 × 58071
LCM(40631,40649) = 1651609519