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What is the Least Common Multiple of 2378 and 2385?

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 2378 and 2385 is 5671530.

LCM(2378,2385) = 5671530

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Least Common Multiple of 2378 and 2385 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 2378 and 2385, than apply into the LCM equation.

GCF(2378,2385) = 1
LCM(2378,2385) = ( 2378 × 2385) / 1
LCM(2378,2385) = 5671530 / 1
LCM(2378,2385) = 5671530

Least Common Multiple (LCM) of 2378 and 2385 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 2378 and 2385. First we will calculate the prime factors of 2378 and 2385.

Prime Factorization of 2378

Prime factors of 2378 are 2, 29, 41. Prime factorization of 2378 in exponential form is:

2378 = 21 × 291 × 411

Prime Factorization of 2385

Prime factors of 2385 are 3, 5, 53. Prime factorization of 2385 in exponential form is:

2385 = 32 × 51 × 531

Now multiplying the highest exponent prime factors to calculate the LCM of 2378 and 2385.

LCM(2378,2385) = 21 × 291 × 411 × 32 × 51 × 531
LCM(2378,2385) = 5671530