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What is the Least Common Multiple of 18138 and 18151?

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 18138 and 18151 is 329222838.

LCM(18138,18151) = 329222838

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Least Common Multiple of 18138 and 18151 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 18138 and 18151, than apply into the LCM equation.

GCF(18138,18151) = 1
LCM(18138,18151) = ( 18138 × 18151) / 1
LCM(18138,18151) = 329222838 / 1
LCM(18138,18151) = 329222838

Least Common Multiple (LCM) of 18138 and 18151 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 18138 and 18151. First we will calculate the prime factors of 18138 and 18151.

Prime Factorization of 18138

Prime factors of 18138 are 2, 3, 3023. Prime factorization of 18138 in exponential form is:

18138 = 21 × 31 × 30231

Prime Factorization of 18151

Prime factors of 18151 are 7, 2593. Prime factorization of 18151 in exponential form is:

18151 = 71 × 25931

Now multiplying the highest exponent prime factors to calculate the LCM of 18138 and 18151.

LCM(18138,18151) = 21 × 31 × 30231 × 71 × 25931
LCM(18138,18151) = 329222838