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What is the Least Common Multiple of 81885 and 81899?

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 81885 and 81899 is 6706299615.

LCM(81885,81899) = 6706299615

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Least Common Multiple of 81885 and 81899 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 81885 and 81899, than apply into the LCM equation.

GCF(81885,81899) = 1
LCM(81885,81899) = ( 81885 × 81899) / 1
LCM(81885,81899) = 6706299615 / 1
LCM(81885,81899) = 6706299615

Least Common Multiple (LCM) of 81885 and 81899 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 81885 and 81899. First we will calculate the prime factors of 81885 and 81899.

Prime Factorization of 81885

Prime factors of 81885 are 3, 5, 53, 103. Prime factorization of 81885 in exponential form is:

81885 = 31 × 51 × 531 × 1031

Prime Factorization of 81899

Prime factors of 81899 are 81899. Prime factorization of 81899 in exponential form is:

81899 = 818991

Now multiplying the highest exponent prime factors to calculate the LCM of 81885 and 81899.

LCM(81885,81899) = 31 × 51 × 531 × 1031 × 818991
LCM(81885,81899) = 6706299615