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What is the Least Common Multiple of 71831 and 71851?

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 71831 and 71851 is 5161129181.

LCM(71831,71851) = 5161129181

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Least Common Multiple of 71831 and 71851 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 71831 and 71851, than apply into the LCM equation.

GCF(71831,71851) = 1
LCM(71831,71851) = ( 71831 × 71851) / 1
LCM(71831,71851) = 5161129181 / 1
LCM(71831,71851) = 5161129181

Least Common Multiple (LCM) of 71831 and 71851 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 71831 and 71851. First we will calculate the prime factors of 71831 and 71851.

Prime Factorization of 71831

Prime factors of 71831 are 109, 659. Prime factorization of 71831 in exponential form is:

71831 = 1091 × 6591

Prime Factorization of 71851

Prime factors of 71851 are 13, 5527. Prime factorization of 71851 in exponential form is:

71851 = 131 × 55271

Now multiplying the highest exponent prime factors to calculate the LCM of 71831 and 71851.

LCM(71831,71851) = 1091 × 6591 × 131 × 55271
LCM(71831,71851) = 5161129181