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What is the Least Common Multiple of 85771 and 85791?

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 85771 and 85791 is 7358379861.

LCM(85771,85791) = 7358379861

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Least Common Multiple of 85771 and 85791 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 85771 and 85791, than apply into the LCM equation.

GCF(85771,85791) = 1
LCM(85771,85791) = ( 85771 × 85791) / 1
LCM(85771,85791) = 7358379861 / 1
LCM(85771,85791) = 7358379861

Least Common Multiple (LCM) of 85771 and 85791 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 85771 and 85791. First we will calculate the prime factors of 85771 and 85791.

Prime Factorization of 85771

Prime factors of 85771 are 7, 12253. Prime factorization of 85771 in exponential form is:

85771 = 71 × 122531

Prime Factorization of 85791

Prime factors of 85791 are 3, 28597. Prime factorization of 85791 in exponential form is:

85791 = 31 × 285971

Now multiplying the highest exponent prime factors to calculate the LCM of 85771 and 85791.

LCM(85771,85791) = 71 × 122531 × 31 × 285971
LCM(85771,85791) = 7358379861