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What is the Least Common Multiple of 28985 and 28999?

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 28985 and 28999 is 840536015.

LCM(28985,28999) = 840536015

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Least Common Multiple of 28985 and 28999 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 28985 and 28999, than apply into the LCM equation.

GCF(28985,28999) = 1
LCM(28985,28999) = ( 28985 × 28999) / 1
LCM(28985,28999) = 840536015 / 1
LCM(28985,28999) = 840536015

Least Common Multiple (LCM) of 28985 and 28999 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 28985 and 28999. First we will calculate the prime factors of 28985 and 28999.

Prime Factorization of 28985

Prime factors of 28985 are 5, 11, 17, 31. Prime factorization of 28985 in exponential form is:

28985 = 51 × 111 × 171 × 311

Prime Factorization of 28999

Prime factors of 28999 are 47, 617. Prime factorization of 28999 in exponential form is:

28999 = 471 × 6171

Now multiplying the highest exponent prime factors to calculate the LCM of 28985 and 28999.

LCM(28985,28999) = 51 × 111 × 171 × 311 × 471 × 6171
LCM(28985,28999) = 840536015