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What is the Least Common Multiple of 15717 and 15734?

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 15717 and 15734 is 247291278.

LCM(15717,15734) = 247291278

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Least Common Multiple of 15717 and 15734 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 15717 and 15734, than apply into the LCM equation.

GCF(15717,15734) = 1
LCM(15717,15734) = ( 15717 × 15734) / 1
LCM(15717,15734) = 247291278 / 1
LCM(15717,15734) = 247291278

Least Common Multiple (LCM) of 15717 and 15734 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 15717 and 15734. First we will calculate the prime factors of 15717 and 15734.

Prime Factorization of 15717

Prime factors of 15717 are 3, 13, 31. Prime factorization of 15717 in exponential form is:

15717 = 31 × 132 × 311

Prime Factorization of 15734

Prime factors of 15734 are 2, 7867. Prime factorization of 15734 in exponential form is:

15734 = 21 × 78671

Now multiplying the highest exponent prime factors to calculate the LCM of 15717 and 15734.

LCM(15717,15734) = 31 × 132 × 311 × 21 × 78671
LCM(15717,15734) = 247291278