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What is the Least Common Multiple of 15971 and 15989?

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 15971 and 15989 is 255360319.

LCM(15971,15989) = 255360319

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Least Common Multiple of 15971 and 15989 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 15971 and 15989, than apply into the LCM equation.

GCF(15971,15989) = 1
LCM(15971,15989) = ( 15971 × 15989) / 1
LCM(15971,15989) = 255360319 / 1
LCM(15971,15989) = 255360319

Least Common Multiple (LCM) of 15971 and 15989 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 15971 and 15989. First we will calculate the prime factors of 15971 and 15989.

Prime Factorization of 15971

Prime factors of 15971 are 15971. Prime factorization of 15971 in exponential form is:

15971 = 159711

Prime Factorization of 15989

Prime factors of 15989 are 59, 271. Prime factorization of 15989 in exponential form is:

15989 = 591 × 2711

Now multiplying the highest exponent prime factors to calculate the LCM of 15971 and 15989.

LCM(15971,15989) = 159711 × 591 × 2711
LCM(15971,15989) = 255360319