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What is the Least Common Multiple of 31689 and 31700?

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 31689 and 31700 is 1004541300.

LCM(31689,31700) = 1004541300

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Least Common Multiple of 31689 and 31700 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 31689 and 31700, than apply into the LCM equation.

GCF(31689,31700) = 1
LCM(31689,31700) = ( 31689 × 31700) / 1
LCM(31689,31700) = 1004541300 / 1
LCM(31689,31700) = 1004541300

Least Common Multiple (LCM) of 31689 and 31700 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 31689 and 31700. First we will calculate the prime factors of 31689 and 31700.

Prime Factorization of 31689

Prime factors of 31689 are 3, 7, 503. Prime factorization of 31689 in exponential form is:

31689 = 32 × 71 × 5031

Prime Factorization of 31700

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

31700 = 22 × 52 × 3171

Now multiplying the highest exponent prime factors to calculate the LCM of 31689 and 31700.

LCM(31689,31700) = 32 × 71 × 5031 × 22 × 52 × 3171
LCM(31689,31700) = 1004541300