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What is the Least Common Multiple of 16715 and 16721?

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 16715 and 16721 is 279491515.

LCM(16715,16721) = 279491515

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Least Common Multiple of 16715 and 16721 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 16715 and 16721, than apply into the LCM equation.

GCF(16715,16721) = 1
LCM(16715,16721) = ( 16715 × 16721) / 1
LCM(16715,16721) = 279491515 / 1
LCM(16715,16721) = 279491515

Least Common Multiple (LCM) of 16715 and 16721 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 16715 and 16721. First we will calculate the prime factors of 16715 and 16721.

Prime Factorization of 16715

Prime factors of 16715 are 5, 3343. Prime factorization of 16715 in exponential form is:

16715 = 51 × 33431

Prime Factorization of 16721

Prime factors of 16721 are 23, 727. Prime factorization of 16721 in exponential form is:

16721 = 231 × 7271

Now multiplying the highest exponent prime factors to calculate the LCM of 16715 and 16721.

LCM(16715,16721) = 51 × 33431 × 231 × 7271
LCM(16715,16721) = 279491515