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What is the Least Common Multiple of 81878 and 81883?

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 81878 and 81883 is 6704416274.

LCM(81878,81883) = 6704416274

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Least Common Multiple of 81878 and 81883 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 81878 and 81883, than apply into the LCM equation.

GCF(81878,81883) = 1
LCM(81878,81883) = ( 81878 × 81883) / 1
LCM(81878,81883) = 6704416274 / 1
LCM(81878,81883) = 6704416274

Least Common Multiple (LCM) of 81878 and 81883 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 81878 and 81883. First we will calculate the prime factors of 81878 and 81883.

Prime Factorization of 81878

Prime factors of 81878 are 2, 40939. Prime factorization of 81878 in exponential form is:

81878 = 21 × 409391

Prime Factorization of 81883

Prime factors of 81883 are 81883. Prime factorization of 81883 in exponential form is:

81883 = 818831

Now multiplying the highest exponent prime factors to calculate the LCM of 81878 and 81883.

LCM(81878,81883) = 21 × 409391 × 818831
LCM(81878,81883) = 6704416274