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What is the Least Common Multiple of 31700 and 31717?

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 31700 and 31717 is 1005428900.

LCM(31700,31717) = 1005428900

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Least Common Multiple of 31700 and 31717 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 31700 and 31717, than apply into the LCM equation.

GCF(31700,31717) = 1
LCM(31700,31717) = ( 31700 × 31717) / 1
LCM(31700,31717) = 1005428900 / 1
LCM(31700,31717) = 1005428900

Least Common Multiple (LCM) of 31700 and 31717 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 31700 and 31717. First we will calculate the prime factors of 31700 and 31717.

Prime Factorization of 31700

Prime factors of 31700 are 2, 5, 317. Prime factorization of 31700 in exponential form is:

31700 = 22 × 52 × 3171

Prime Factorization of 31717

Prime factors of 31717 are 7, 23, 197. Prime factorization of 31717 in exponential form is:

31717 = 71 × 231 × 1971

Now multiplying the highest exponent prime factors to calculate the LCM of 31700 and 31717.

LCM(31700,31717) = 22 × 52 × 3171 × 71 × 231 × 1971
LCM(31700,31717) = 1005428900