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What is the Least Common Multiple of 31395 and 31406?

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 31395 and 31406 is 985991370.

LCM(31395,31406) = 985991370

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Least Common Multiple of 31395 and 31406 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 31395 and 31406, than apply into the LCM equation.

GCF(31395,31406) = 1
LCM(31395,31406) = ( 31395 × 31406) / 1
LCM(31395,31406) = 985991370 / 1
LCM(31395,31406) = 985991370

Least Common Multiple (LCM) of 31395 and 31406 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 31395 and 31406. First we will calculate the prime factors of 31395 and 31406.

Prime Factorization of 31395

Prime factors of 31395 are 3, 5, 7, 13, 23. Prime factorization of 31395 in exponential form is:

31395 = 31 × 51 × 71 × 131 × 231

Prime Factorization of 31406

Prime factors of 31406 are 2, 41, 383. Prime factorization of 31406 in exponential form is:

31406 = 21 × 411 × 3831

Now multiplying the highest exponent prime factors to calculate the LCM of 31395 and 31406.

LCM(31395,31406) = 31 × 51 × 71 × 131 × 231 × 21 × 411 × 3831
LCM(31395,31406) = 985991370