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What is the Least Common Multiple of 15681 and 15695?

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 15681 and 15695 is 246113295.

LCM(15681,15695) = 246113295

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Least Common Multiple of 15681 and 15695 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 15681 and 15695, than apply into the LCM equation.

GCF(15681,15695) = 1
LCM(15681,15695) = ( 15681 × 15695) / 1
LCM(15681,15695) = 246113295 / 1
LCM(15681,15695) = 246113295

Least Common Multiple (LCM) of 15681 and 15695 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 15681 and 15695. First we will calculate the prime factors of 15681 and 15695.

Prime Factorization of 15681

Prime factors of 15681 are 3, 5227. Prime factorization of 15681 in exponential form is:

15681 = 31 × 52271

Prime Factorization of 15695

Prime factors of 15695 are 5, 43, 73. Prime factorization of 15695 in exponential form is:

15695 = 51 × 431 × 731

Now multiplying the highest exponent prime factors to calculate the LCM of 15681 and 15695.

LCM(15681,15695) = 31 × 52271 × 51 × 431 × 731
LCM(15681,15695) = 246113295