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What is the Least Common Multiple of 12723 and 12731?

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 12723 and 12731 is 161976513.

LCM(12723,12731) = 161976513

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Least Common Multiple of 12723 and 12731 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 12723 and 12731, than apply into the LCM equation.

GCF(12723,12731) = 1
LCM(12723,12731) = ( 12723 × 12731) / 1
LCM(12723,12731) = 161976513 / 1
LCM(12723,12731) = 161976513

Least Common Multiple (LCM) of 12723 and 12731 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 12723 and 12731. First we will calculate the prime factors of 12723 and 12731.

Prime Factorization of 12723

Prime factors of 12723 are 3, 4241. Prime factorization of 12723 in exponential form is:

12723 = 31 × 42411

Prime Factorization of 12731

Prime factors of 12731 are 29, 439. Prime factorization of 12731 in exponential form is:

12731 = 291 × 4391

Now multiplying the highest exponent prime factors to calculate the LCM of 12723 and 12731.

LCM(12723,12731) = 31 × 42411 × 291 × 4391
LCM(12723,12731) = 161976513