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What is the Least Common Multiple of 15872 and 15885?

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 15872 and 15885 is 252126720.

LCM(15872,15885) = 252126720

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Least Common Multiple of 15872 and 15885 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 15872 and 15885, than apply into the LCM equation.

GCF(15872,15885) = 1
LCM(15872,15885) = ( 15872 × 15885) / 1
LCM(15872,15885) = 252126720 / 1
LCM(15872,15885) = 252126720

Least Common Multiple (LCM) of 15872 and 15885 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 15872 and 15885. First we will calculate the prime factors of 15872 and 15885.

Prime Factorization of 15872

Prime factors of 15872 are 2, 31. Prime factorization of 15872 in exponential form is:

15872 = 29 × 311

Prime Factorization of 15885

Prime factors of 15885 are 3, 5, 353. Prime factorization of 15885 in exponential form is:

15885 = 32 × 51 × 3531

Now multiplying the highest exponent prime factors to calculate the LCM of 15872 and 15885.

LCM(15872,15885) = 29 × 311 × 32 × 51 × 3531
LCM(15872,15885) = 252126720