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What is the Least Common Multiple of 13704 and 13724?

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 13704 and 13724 is 47018424.

LCM(13704,13724) = 47018424

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Least Common Multiple of 13704 and 13724 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 13704 and 13724, than apply into the LCM equation.

GCF(13704,13724) = 4
LCM(13704,13724) = ( 13704 × 13724) / 4
LCM(13704,13724) = 188073696 / 4
LCM(13704,13724) = 47018424

Least Common Multiple (LCM) of 13704 and 13724 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 13704 and 13724. First we will calculate the prime factors of 13704 and 13724.

Prime Factorization of 13704

Prime factors of 13704 are 2, 3, 571. Prime factorization of 13704 in exponential form is:

13704 = 23 × 31 × 5711

Prime Factorization of 13724

Prime factors of 13724 are 2, 47, 73. Prime factorization of 13724 in exponential form is:

13724 = 22 × 471 × 731

Now multiplying the highest exponent prime factors to calculate the LCM of 13704 and 13724.

LCM(13704,13724) = 23 × 31 × 5711 × 471 × 731
LCM(13704,13724) = 47018424