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What is the Least Common Multiple of 38405 and 38417?

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 38405 and 38417 is 1475404885.

LCM(38405,38417) = 1475404885

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Least Common Multiple of 38405 and 38417 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 38405 and 38417, than apply into the LCM equation.

GCF(38405,38417) = 1
LCM(38405,38417) = ( 38405 × 38417) / 1
LCM(38405,38417) = 1475404885 / 1
LCM(38405,38417) = 1475404885

Least Common Multiple (LCM) of 38405 and 38417 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 38405 and 38417. First we will calculate the prime factors of 38405 and 38417.

Prime Factorization of 38405

Prime factors of 38405 are 5, 7681. Prime factorization of 38405 in exponential form is:

38405 = 51 × 76811

Prime Factorization of 38417

Prime factors of 38417 are 41, 937. Prime factorization of 38417 in exponential form is:

38417 = 411 × 9371

Now multiplying the highest exponent prime factors to calculate the LCM of 38405 and 38417.

LCM(38405,38417) = 51 × 76811 × 411 × 9371
LCM(38405,38417) = 1475404885