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What is the Least Common Multiple of 18017 and 18021?

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 18017 and 18021 is 324684357.

LCM(18017,18021) = 324684357

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Least Common Multiple of 18017 and 18021 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 18017 and 18021, than apply into the LCM equation.

GCF(18017,18021) = 1
LCM(18017,18021) = ( 18017 × 18021) / 1
LCM(18017,18021) = 324684357 / 1
LCM(18017,18021) = 324684357

Least Common Multiple (LCM) of 18017 and 18021 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 18017 and 18021. First we will calculate the prime factors of 18017 and 18021.

Prime Factorization of 18017

Prime factors of 18017 are 43, 419. Prime factorization of 18017 in exponential form is:

18017 = 431 × 4191

Prime Factorization of 18021

Prime factors of 18021 are 3, 6007. Prime factorization of 18021 in exponential form is:

18021 = 31 × 60071

Now multiplying the highest exponent prime factors to calculate the LCM of 18017 and 18021.

LCM(18017,18021) = 431 × 4191 × 31 × 60071
LCM(18017,18021) = 324684357