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What is the Least Common Multiple of 15741 and 15747?

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 15741 and 15747 is 82624509.

LCM(15741,15747) = 82624509

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Least Common Multiple of 15741 and 15747 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 15741 and 15747, than apply into the LCM equation.

GCF(15741,15747) = 3
LCM(15741,15747) = ( 15741 × 15747) / 3
LCM(15741,15747) = 247873527 / 3
LCM(15741,15747) = 82624509

Least Common Multiple (LCM) of 15741 and 15747 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 15741 and 15747. First we will calculate the prime factors of 15741 and 15747.

Prime Factorization of 15741

Prime factors of 15741 are 3, 11, 53. Prime factorization of 15741 in exponential form is:

15741 = 33 × 111 × 531

Prime Factorization of 15747

Prime factors of 15747 are 3, 29, 181. Prime factorization of 15747 in exponential form is:

15747 = 31 × 291 × 1811

Now multiplying the highest exponent prime factors to calculate the LCM of 15741 and 15747.

LCM(15741,15747) = 33 × 111 × 531 × 291 × 1811
LCM(15741,15747) = 82624509