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What is the Least Common Multiple of 85709 and 85724?

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 85709 and 85724 is 7347318316.

LCM(85709,85724) = 7347318316

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Least Common Multiple of 85709 and 85724 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 85709 and 85724, than apply into the LCM equation.

GCF(85709,85724) = 1
LCM(85709,85724) = ( 85709 × 85724) / 1
LCM(85709,85724) = 7347318316 / 1
LCM(85709,85724) = 7347318316

Least Common Multiple (LCM) of 85709 and 85724 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 85709 and 85724. First we will calculate the prime factors of 85709 and 85724.

Prime Factorization of 85709

Prime factors of 85709 are 13, 19, 347. Prime factorization of 85709 in exponential form is:

85709 = 131 × 191 × 3471

Prime Factorization of 85724

Prime factors of 85724 are 2, 29, 739. Prime factorization of 85724 in exponential form is:

85724 = 22 × 291 × 7391

Now multiplying the highest exponent prime factors to calculate the LCM of 85709 and 85724.

LCM(85709,85724) = 131 × 191 × 3471 × 22 × 291 × 7391
LCM(85709,85724) = 7347318316