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What is the Least Common Multiple of 8703 and 8721?

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 8703 and 8721 is 8433207.

LCM(8703,8721) = 8433207

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Least Common Multiple of 8703 and 8721 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 8703 and 8721, than apply into the LCM equation.

GCF(8703,8721) = 9
LCM(8703,8721) = ( 8703 × 8721) / 9
LCM(8703,8721) = 75898863 / 9
LCM(8703,8721) = 8433207

Least Common Multiple (LCM) of 8703 and 8721 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 8703 and 8721. First we will calculate the prime factors of 8703 and 8721.

Prime Factorization of 8703

Prime factors of 8703 are 3, 967. Prime factorization of 8703 in exponential form is:

8703 = 32 × 9671

Prime Factorization of 8721

Prime factors of 8721 are 3, 17, 19. Prime factorization of 8721 in exponential form is:

8721 = 33 × 171 × 191

Now multiplying the highest exponent prime factors to calculate the LCM of 8703 and 8721.

LCM(8703,8721) = 33 × 9671 × 171 × 191
LCM(8703,8721) = 8433207