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What is the Least Common Multiple of 17891 and 17898?

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 17891 and 17898 is 320213118.

LCM(17891,17898) = 320213118

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Least Common Multiple of 17891 and 17898 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 17891 and 17898, than apply into the LCM equation.

GCF(17891,17898) = 1
LCM(17891,17898) = ( 17891 × 17898) / 1
LCM(17891,17898) = 320213118 / 1
LCM(17891,17898) = 320213118

Least Common Multiple (LCM) of 17891 and 17898 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 17891 and 17898. First we will calculate the prime factors of 17891 and 17898.

Prime Factorization of 17891

Prime factors of 17891 are 17891. Prime factorization of 17891 in exponential form is:

17891 = 178911

Prime Factorization of 17898

Prime factors of 17898 are 2, 3, 19, 157. Prime factorization of 17898 in exponential form is:

17898 = 21 × 31 × 191 × 1571

Now multiplying the highest exponent prime factors to calculate the LCM of 17891 and 17898.

LCM(17891,17898) = 178911 × 21 × 31 × 191 × 1571
LCM(17891,17898) = 320213118