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What is the Least Common Multiple of 25396 and 25405?

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 25396 and 25405 is 645185380.

LCM(25396,25405) = 645185380

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Least Common Multiple of 25396 and 25405 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 25396 and 25405, than apply into the LCM equation.

GCF(25396,25405) = 1
LCM(25396,25405) = ( 25396 × 25405) / 1
LCM(25396,25405) = 645185380 / 1
LCM(25396,25405) = 645185380

Least Common Multiple (LCM) of 25396 and 25405 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 25396 and 25405. First we will calculate the prime factors of 25396 and 25405.

Prime Factorization of 25396

Prime factors of 25396 are 2, 7, 907. Prime factorization of 25396 in exponential form is:

25396 = 22 × 71 × 9071

Prime Factorization of 25405

Prime factors of 25405 are 5, 5081. Prime factorization of 25405 in exponential form is:

25405 = 51 × 50811

Now multiplying the highest exponent prime factors to calculate the LCM of 25396 and 25405.

LCM(25396,25405) = 22 × 71 × 9071 × 51 × 50811
LCM(25396,25405) = 645185380