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What is the Least Common Multiple of 28686 and 28695?

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 28686 and 28695 is 274381590.

LCM(28686,28695) = 274381590

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Least Common Multiple of 28686 and 28695 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 28686 and 28695, than apply into the LCM equation.

GCF(28686,28695) = 3
LCM(28686,28695) = ( 28686 × 28695) / 3
LCM(28686,28695) = 823144770 / 3
LCM(28686,28695) = 274381590

Least Common Multiple (LCM) of 28686 and 28695 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 28686 and 28695. First we will calculate the prime factors of 28686 and 28695.

Prime Factorization of 28686

Prime factors of 28686 are 2, 3, 7, 683. Prime factorization of 28686 in exponential form is:

28686 = 21 × 31 × 71 × 6831

Prime Factorization of 28695

Prime factors of 28695 are 3, 5, 1913. Prime factorization of 28695 in exponential form is:

28695 = 31 × 51 × 19131

Now multiplying the highest exponent prime factors to calculate the LCM of 28686 and 28695.

LCM(28686,28695) = 21 × 31 × 71 × 6831 × 51 × 19131
LCM(28686,28695) = 274381590