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What is the Least Common Multiple of 90687 and 90705?

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 90687 and 90705 is 2741921445.

LCM(90687,90705) = 2741921445

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Least Common Multiple of 90687 and 90705 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 90687 and 90705, than apply into the LCM equation.

GCF(90687,90705) = 3
LCM(90687,90705) = ( 90687 × 90705) / 3
LCM(90687,90705) = 8225764335 / 3
LCM(90687,90705) = 2741921445

Least Common Multiple (LCM) of 90687 and 90705 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 90687 and 90705. First we will calculate the prime factors of 90687 and 90705.

Prime Factorization of 90687

Prime factors of 90687 are 3, 19, 37, 43. Prime factorization of 90687 in exponential form is:

90687 = 31 × 191 × 371 × 431

Prime Factorization of 90705

Prime factors of 90705 are 3, 5, 6047. Prime factorization of 90705 in exponential form is:

90705 = 31 × 51 × 60471

Now multiplying the highest exponent prime factors to calculate the LCM of 90687 and 90705.

LCM(90687,90705) = 31 × 191 × 371 × 431 × 51 × 60471
LCM(90687,90705) = 2741921445