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What is the Least Common Multiple of 38391 and 38406?

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 38391 and 38406 is 491481582.

LCM(38391,38406) = 491481582

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Least Common Multiple of 38391 and 38406 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 38391 and 38406, than apply into the LCM equation.

GCF(38391,38406) = 3
LCM(38391,38406) = ( 38391 × 38406) / 3
LCM(38391,38406) = 1474444746 / 3
LCM(38391,38406) = 491481582

Least Common Multiple (LCM) of 38391 and 38406 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 38391 and 38406. First we will calculate the prime factors of 38391 and 38406.

Prime Factorization of 38391

Prime factors of 38391 are 3, 67, 191. Prime factorization of 38391 in exponential form is:

38391 = 31 × 671 × 1911

Prime Factorization of 38406

Prime factors of 38406 are 2, 3, 37, 173. Prime factorization of 38406 in exponential form is:

38406 = 21 × 31 × 371 × 1731

Now multiplying the highest exponent prime factors to calculate the LCM of 38391 and 38406.

LCM(38391,38406) = 31 × 671 × 1911 × 21 × 371 × 1731
LCM(38391,38406) = 491481582