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What is the Least Common Multiple of 38645 and 38658?

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 38645 and 38658 is 1493938410.

LCM(38645,38658) = 1493938410

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Least Common Multiple of 38645 and 38658 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 38645 and 38658, than apply into the LCM equation.

GCF(38645,38658) = 1
LCM(38645,38658) = ( 38645 × 38658) / 1
LCM(38645,38658) = 1493938410 / 1
LCM(38645,38658) = 1493938410

Least Common Multiple (LCM) of 38645 and 38658 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 38645 and 38658. First we will calculate the prime factors of 38645 and 38658.

Prime Factorization of 38645

Prime factors of 38645 are 5, 59, 131. Prime factorization of 38645 in exponential form is:

38645 = 51 × 591 × 1311

Prime Factorization of 38658

Prime factors of 38658 are 2, 3, 17, 379. Prime factorization of 38658 in exponential form is:

38658 = 21 × 31 × 171 × 3791

Now multiplying the highest exponent prime factors to calculate the LCM of 38645 and 38658.

LCM(38645,38658) = 51 × 591 × 1311 × 21 × 31 × 171 × 3791
LCM(38645,38658) = 1493938410