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What is the Least Common Multiple of 2389 and 2409?

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 2389 and 2409 is 5755101.

LCM(2389,2409) = 5755101

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Least Common Multiple of 2389 and 2409 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 2389 and 2409, than apply into the LCM equation.

GCF(2389,2409) = 1
LCM(2389,2409) = ( 2389 × 2409) / 1
LCM(2389,2409) = 5755101 / 1
LCM(2389,2409) = 5755101

Least Common Multiple (LCM) of 2389 and 2409 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 2389 and 2409. First we will calculate the prime factors of 2389 and 2409.

Prime Factorization of 2389

Prime factors of 2389 are 2389. Prime factorization of 2389 in exponential form is:

2389 = 23891

Prime Factorization of 2409

Prime factors of 2409 are 3, 11, 73. Prime factorization of 2409 in exponential form is:

2409 = 31 × 111 × 731

Now multiplying the highest exponent prime factors to calculate the LCM of 2389 and 2409.

LCM(2389,2409) = 23891 × 31 × 111 × 731
LCM(2389,2409) = 5755101