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What is the Least Common Multiple of 28782 and 28786?

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 28782 and 28786 is 414259326.

LCM(28782,28786) = 414259326

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Least Common Multiple of 28782 and 28786 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 28782 and 28786, than apply into the LCM equation.

GCF(28782,28786) = 2
LCM(28782,28786) = ( 28782 × 28786) / 2
LCM(28782,28786) = 828518652 / 2
LCM(28782,28786) = 414259326

Least Common Multiple (LCM) of 28782 and 28786 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 28782 and 28786. First we will calculate the prime factors of 28782 and 28786.

Prime Factorization of 28782

Prime factors of 28782 are 2, 3, 13, 41. Prime factorization of 28782 in exponential form is:

28782 = 21 × 33 × 131 × 411

Prime Factorization of 28786

Prime factors of 28786 are 2, 37, 389. Prime factorization of 28786 in exponential form is:

28786 = 21 × 371 × 3891

Now multiplying the highest exponent prime factors to calculate the LCM of 28782 and 28786.

LCM(28782,28786) = 21 × 33 × 131 × 411 × 371 × 3891
LCM(28782,28786) = 414259326