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What is the Least Common Multiple of 81669 and 81682?

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 81669 and 81682 is 6670887258.

LCM(81669,81682) = 6670887258

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Least Common Multiple of 81669 and 81682 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 81669 and 81682, than apply into the LCM equation.

GCF(81669,81682) = 1
LCM(81669,81682) = ( 81669 × 81682) / 1
LCM(81669,81682) = 6670887258 / 1
LCM(81669,81682) = 6670887258

Least Common Multiple (LCM) of 81669 and 81682 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 81669 and 81682. First we will calculate the prime factors of 81669 and 81682.

Prime Factorization of 81669

Prime factors of 81669 are 3, 7, 3889. Prime factorization of 81669 in exponential form is:

81669 = 31 × 71 × 38891

Prime Factorization of 81682

Prime factors of 81682 are 2, 40841. Prime factorization of 81682 in exponential form is:

81682 = 21 × 408411

Now multiplying the highest exponent prime factors to calculate the LCM of 81669 and 81682.

LCM(81669,81682) = 31 × 71 × 38891 × 21 × 408411
LCM(81669,81682) = 6670887258