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What is the Least Common Multiple of 31682 and 31686?

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 31682 and 31686 is 501937926.

LCM(31682,31686) = 501937926

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Least Common Multiple of 31682 and 31686 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 31682 and 31686, than apply into the LCM equation.

GCF(31682,31686) = 2
LCM(31682,31686) = ( 31682 × 31686) / 2
LCM(31682,31686) = 1003875852 / 2
LCM(31682,31686) = 501937926

Least Common Multiple (LCM) of 31682 and 31686 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 31682 and 31686. First we will calculate the prime factors of 31682 and 31686.

Prime Factorization of 31682

Prime factors of 31682 are 2, 7, 31, 73. Prime factorization of 31682 in exponential form is:

31682 = 21 × 71 × 311 × 731

Prime Factorization of 31686

Prime factors of 31686 are 2, 3, 5281. Prime factorization of 31686 in exponential form is:

31686 = 21 × 31 × 52811

Now multiplying the highest exponent prime factors to calculate the LCM of 31682 and 31686.

LCM(31682,31686) = 21 × 71 × 311 × 731 × 31 × 52811
LCM(31682,31686) = 501937926