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What is the Least Common Multiple of 71629 and 71638?

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 71629 and 71638 is 5131358302.

LCM(71629,71638) = 5131358302

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Least Common Multiple of 71629 and 71638 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 71629 and 71638, than apply into the LCM equation.

GCF(71629,71638) = 1
LCM(71629,71638) = ( 71629 × 71638) / 1
LCM(71629,71638) = 5131358302 / 1
LCM(71629,71638) = 5131358302

Least Common Multiple (LCM) of 71629 and 71638 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 71629 and 71638. First we will calculate the prime factors of 71629 and 71638.

Prime Factorization of 71629

Prime factors of 71629 are 83, 863. Prime factorization of 71629 in exponential form is:

71629 = 831 × 8631

Prime Factorization of 71638

Prime factors of 71638 are 2, 7, 17, 43. Prime factorization of 71638 in exponential form is:

71638 = 21 × 72 × 171 × 431

Now multiplying the highest exponent prime factors to calculate the LCM of 71629 and 71638.

LCM(71629,71638) = 831 × 8631 × 21 × 72 × 171 × 431
LCM(71629,71638) = 5131358302