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What is the Least Common Multiple of 86768 and 86785?

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 86768 and 86785 is 442950640.

LCM(86768,86785) = 442950640

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Least Common Multiple of 86768 and 86785 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 86768 and 86785, than apply into the LCM equation.

GCF(86768,86785) = 17
LCM(86768,86785) = ( 86768 × 86785) / 17
LCM(86768,86785) = 7530160880 / 17
LCM(86768,86785) = 442950640

Least Common Multiple (LCM) of 86768 and 86785 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 86768 and 86785. First we will calculate the prime factors of 86768 and 86785.

Prime Factorization of 86768

Prime factors of 86768 are 2, 11, 17, 29. Prime factorization of 86768 in exponential form is:

86768 = 24 × 111 × 171 × 291

Prime Factorization of 86785

Prime factors of 86785 are 5, 17, 1021. Prime factorization of 86785 in exponential form is:

86785 = 51 × 171 × 10211

Now multiplying the highest exponent prime factors to calculate the LCM of 86768 and 86785.

LCM(86768,86785) = 24 × 111 × 171 × 291 × 51 × 10211
LCM(86768,86785) = 442950640