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What is the Least Common Multiple of 84474 and 84487?

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 84474 and 84487 is 548996526.

LCM(84474,84487) = 548996526

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Least Common Multiple of 84474 and 84487 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 84474 and 84487, than apply into the LCM equation.

GCF(84474,84487) = 13
LCM(84474,84487) = ( 84474 × 84487) / 13
LCM(84474,84487) = 7136954838 / 13
LCM(84474,84487) = 548996526

Least Common Multiple (LCM) of 84474 and 84487 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 84474 and 84487. First we will calculate the prime factors of 84474 and 84487.

Prime Factorization of 84474

Prime factors of 84474 are 2, 3, 13, 19. Prime factorization of 84474 in exponential form is:

84474 = 21 × 32 × 131 × 192

Prime Factorization of 84487

Prime factors of 84487 are 13, 67, 97. Prime factorization of 84487 in exponential form is:

84487 = 131 × 671 × 971

Now multiplying the highest exponent prime factors to calculate the LCM of 84474 and 84487.

LCM(84474,84487) = 21 × 32 × 131 × 192 × 671 × 971
LCM(84474,84487) = 548996526