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What is the Least Common Multiple of 31893 and 31906?

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 31893 and 31906 is 1017578058.

LCM(31893,31906) = 1017578058

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Least Common Multiple of 31893 and 31906 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 31893 and 31906, than apply into the LCM equation.

GCF(31893,31906) = 1
LCM(31893,31906) = ( 31893 × 31906) / 1
LCM(31893,31906) = 1017578058 / 1
LCM(31893,31906) = 1017578058

Least Common Multiple (LCM) of 31893 and 31906 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 31893 and 31906. First we will calculate the prime factors of 31893 and 31906.

Prime Factorization of 31893

Prime factors of 31893 are 3, 10631. Prime factorization of 31893 in exponential form is:

31893 = 31 × 106311

Prime Factorization of 31906

Prime factors of 31906 are 2, 7, 43, 53. Prime factorization of 31906 in exponential form is:

31906 = 21 × 71 × 431 × 531

Now multiplying the highest exponent prime factors to calculate the LCM of 31893 and 31906.

LCM(31893,31906) = 31 × 106311 × 21 × 71 × 431 × 531
LCM(31893,31906) = 1017578058