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What is the Least Common Multiple of 70686 and 70691?

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 70686 and 70691 is 4996864026.

LCM(70686,70691) = 4996864026

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Least Common Multiple of 70686 and 70691 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 70686 and 70691, than apply into the LCM equation.

GCF(70686,70691) = 1
LCM(70686,70691) = ( 70686 × 70691) / 1
LCM(70686,70691) = 4996864026 / 1
LCM(70686,70691) = 4996864026

Least Common Multiple (LCM) of 70686 and 70691 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 70686 and 70691. First we will calculate the prime factors of 70686 and 70691.

Prime Factorization of 70686

Prime factors of 70686 are 2, 3, 7, 11, 17. Prime factorization of 70686 in exponential form is:

70686 = 21 × 33 × 71 × 111 × 171

Prime Factorization of 70691

Prime factors of 70691 are 223, 317. Prime factorization of 70691 in exponential form is:

70691 = 2231 × 3171

Now multiplying the highest exponent prime factors to calculate the LCM of 70686 and 70691.

LCM(70686,70691) = 21 × 33 × 71 × 111 × 171 × 2231 × 3171
LCM(70686,70691) = 4996864026