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What is the Least Common Multiple of 15738 and 15743?

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 15738 and 15743 is 247763334.

LCM(15738,15743) = 247763334

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Least Common Multiple of 15738 and 15743 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 15738 and 15743, than apply into the LCM equation.

GCF(15738,15743) = 1
LCM(15738,15743) = ( 15738 × 15743) / 1
LCM(15738,15743) = 247763334 / 1
LCM(15738,15743) = 247763334

Least Common Multiple (LCM) of 15738 and 15743 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 15738 and 15743. First we will calculate the prime factors of 15738 and 15743.

Prime Factorization of 15738

Prime factors of 15738 are 2, 3, 43, 61. Prime factorization of 15738 in exponential form is:

15738 = 21 × 31 × 431 × 611

Prime Factorization of 15743

Prime factors of 15743 are 7, 13, 173. Prime factorization of 15743 in exponential form is:

15743 = 71 × 131 × 1731

Now multiplying the highest exponent prime factors to calculate the LCM of 15738 and 15743.

LCM(15738,15743) = 21 × 31 × 431 × 611 × 71 × 131 × 1731
LCM(15738,15743) = 247763334