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What is the Least Common Multiple of 51385 and 51405?

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 51385 and 51405 is 528289185.

LCM(51385,51405) = 528289185

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Least Common Multiple of 51385 and 51405 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 51385 and 51405, than apply into the LCM equation.

GCF(51385,51405) = 5
LCM(51385,51405) = ( 51385 × 51405) / 5
LCM(51385,51405) = 2641445925 / 5
LCM(51385,51405) = 528289185

Least Common Multiple (LCM) of 51385 and 51405 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 51385 and 51405. First we will calculate the prime factors of 51385 and 51405.

Prime Factorization of 51385

Prime factors of 51385 are 5, 43, 239. Prime factorization of 51385 in exponential form is:

51385 = 51 × 431 × 2391

Prime Factorization of 51405

Prime factors of 51405 are 3, 5, 23, 149. Prime factorization of 51405 in exponential form is:

51405 = 31 × 51 × 231 × 1491

Now multiplying the highest exponent prime factors to calculate the LCM of 51385 and 51405.

LCM(51385,51405) = 51 × 431 × 2391 × 31 × 231 × 1491
LCM(51385,51405) = 528289185