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What is the Least Common Multiple of 75686 and 75706?

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 75686 and 75706 is 2864942158.

LCM(75686,75706) = 2864942158

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Least Common Multiple of 75686 and 75706 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 75686 and 75706, than apply into the LCM equation.

GCF(75686,75706) = 2
LCM(75686,75706) = ( 75686 × 75706) / 2
LCM(75686,75706) = 5729884316 / 2
LCM(75686,75706) = 2864942158

Least Common Multiple (LCM) of 75686 and 75706 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 75686 and 75706. First we will calculate the prime factors of 75686 and 75706.

Prime Factorization of 75686

Prime factors of 75686 are 2, 13, 41, 71. Prime factorization of 75686 in exponential form is:

75686 = 21 × 131 × 411 × 711

Prime Factorization of 75706

Prime factors of 75706 are 2, 37853. Prime factorization of 75706 in exponential form is:

75706 = 21 × 378531

Now multiplying the highest exponent prime factors to calculate the LCM of 75686 and 75706.

LCM(75686,75706) = 21 × 131 × 411 × 711 × 378531
LCM(75686,75706) = 2864942158