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What is the Least Common Multiple of 18305 and 18312?

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 18305 and 18312 is 47885880.

LCM(18305,18312) = 47885880

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Least Common Multiple of 18305 and 18312 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 18305 and 18312, than apply into the LCM equation.

GCF(18305,18312) = 7
LCM(18305,18312) = ( 18305 × 18312) / 7
LCM(18305,18312) = 335201160 / 7
LCM(18305,18312) = 47885880

Least Common Multiple (LCM) of 18305 and 18312 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 18305 and 18312. First we will calculate the prime factors of 18305 and 18312.

Prime Factorization of 18305

Prime factors of 18305 are 5, 7, 523. Prime factorization of 18305 in exponential form is:

18305 = 51 × 71 × 5231

Prime Factorization of 18312

Prime factors of 18312 are 2, 3, 7, 109. Prime factorization of 18312 in exponential form is:

18312 = 23 × 31 × 71 × 1091

Now multiplying the highest exponent prime factors to calculate the LCM of 18305 and 18312.

LCM(18305,18312) = 51 × 71 × 5231 × 23 × 31 × 1091
LCM(18305,18312) = 47885880