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What is the Least Common Multiple of 31868 and 31882?

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 31868 and 31882 is 508007788.

LCM(31868,31882) = 508007788

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Least Common Multiple of 31868 and 31882 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 31868 and 31882, than apply into the LCM equation.

GCF(31868,31882) = 2
LCM(31868,31882) = ( 31868 × 31882) / 2
LCM(31868,31882) = 1016015576 / 2
LCM(31868,31882) = 508007788

Least Common Multiple (LCM) of 31868 and 31882 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 31868 and 31882. First we will calculate the prime factors of 31868 and 31882.

Prime Factorization of 31868

Prime factors of 31868 are 2, 31, 257. Prime factorization of 31868 in exponential form is:

31868 = 22 × 311 × 2571

Prime Factorization of 31882

Prime factors of 31882 are 2, 19, 839. Prime factorization of 31882 in exponential form is:

31882 = 21 × 191 × 8391

Now multiplying the highest exponent prime factors to calculate the LCM of 31868 and 31882.

LCM(31868,31882) = 22 × 311 × 2571 × 191 × 8391
LCM(31868,31882) = 508007788