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What is the Least Common Multiple of 15787 and 15806?

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 15787 and 15806 is 249529322.

LCM(15787,15806) = 249529322

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Least Common Multiple of 15787 and 15806 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 15787 and 15806, than apply into the LCM equation.

GCF(15787,15806) = 1
LCM(15787,15806) = ( 15787 × 15806) / 1
LCM(15787,15806) = 249529322 / 1
LCM(15787,15806) = 249529322

Least Common Multiple (LCM) of 15787 and 15806 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 15787 and 15806. First we will calculate the prime factors of 15787 and 15806.

Prime Factorization of 15787

Prime factors of 15787 are 15787. Prime factorization of 15787 in exponential form is:

15787 = 157871

Prime Factorization of 15806

Prime factors of 15806 are 2, 7, 1129. Prime factorization of 15806 in exponential form is:

15806 = 21 × 71 × 11291

Now multiplying the highest exponent prime factors to calculate the LCM of 15787 and 15806.

LCM(15787,15806) = 157871 × 21 × 71 × 11291
LCM(15787,15806) = 249529322