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What is the Least Common Multiple of 40989 and 40999?

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 40989 and 40999 is 1680508011.

LCM(40989,40999) = 1680508011

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Least Common Multiple of 40989 and 40999 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 40989 and 40999, than apply into the LCM equation.

GCF(40989,40999) = 1
LCM(40989,40999) = ( 40989 × 40999) / 1
LCM(40989,40999) = 1680508011 / 1
LCM(40989,40999) = 1680508011

Least Common Multiple (LCM) of 40989 and 40999 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 40989 and 40999. First we will calculate the prime factors of 40989 and 40999.

Prime Factorization of 40989

Prime factors of 40989 are 3, 13, 1051. Prime factorization of 40989 in exponential form is:

40989 = 31 × 131 × 10511

Prime Factorization of 40999

Prime factors of 40999 are 7, 5857. Prime factorization of 40999 in exponential form is:

40999 = 71 × 58571

Now multiplying the highest exponent prime factors to calculate the LCM of 40989 and 40999.

LCM(40989,40999) = 31 × 131 × 10511 × 71 × 58571
LCM(40989,40999) = 1680508011