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What is the Least Common Multiple of 81366 and 81382?

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 81366 and 81382 is 3310863906.

LCM(81366,81382) = 3310863906

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Least Common Multiple of 81366 and 81382 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 81366 and 81382, than apply into the LCM equation.

GCF(81366,81382) = 2
LCM(81366,81382) = ( 81366 × 81382) / 2
LCM(81366,81382) = 6621727812 / 2
LCM(81366,81382) = 3310863906

Least Common Multiple (LCM) of 81366 and 81382 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 81366 and 81382. First we will calculate the prime factors of 81366 and 81382.

Prime Factorization of 81366

Prime factors of 81366 are 2, 3, 71, 191. Prime factorization of 81366 in exponential form is:

81366 = 21 × 31 × 711 × 1911

Prime Factorization of 81382

Prime factors of 81382 are 2, 7, 5813. Prime factorization of 81382 in exponential form is:

81382 = 21 × 71 × 58131

Now multiplying the highest exponent prime factors to calculate the LCM of 81366 and 81382.

LCM(81366,81382) = 21 × 31 × 711 × 1911 × 71 × 58131
LCM(81366,81382) = 3310863906