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What is the Least Common Multiple of 65686 and 65691?

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 65686 and 65691 is 4314979026.

LCM(65686,65691) = 4314979026

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Least Common Multiple of 65686 and 65691 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 65686 and 65691, than apply into the LCM equation.

GCF(65686,65691) = 1
LCM(65686,65691) = ( 65686 × 65691) / 1
LCM(65686,65691) = 4314979026 / 1
LCM(65686,65691) = 4314979026

Least Common Multiple (LCM) of 65686 and 65691 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 65686 and 65691. First we will calculate the prime factors of 65686 and 65691.

Prime Factorization of 65686

Prime factors of 65686 are 2, 32843. Prime factorization of 65686 in exponential form is:

65686 = 21 × 328431

Prime Factorization of 65691

Prime factors of 65691 are 3, 811. Prime factorization of 65691 in exponential form is:

65691 = 34 × 8111

Now multiplying the highest exponent prime factors to calculate the LCM of 65686 and 65691.

LCM(65686,65691) = 21 × 328431 × 34 × 8111
LCM(65686,65691) = 4314979026