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What is the Least Common Multiple of 31868 and 31885?

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 31885 is 1016111180.

LCM(31868,31885) = 1016111180

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Least Common Multiple of 31868 and 31885 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 31885, than apply into the LCM equation.

GCF(31868,31885) = 1
LCM(31868,31885) = ( 31868 × 31885) / 1
LCM(31868,31885) = 1016111180 / 1
LCM(31868,31885) = 1016111180

Least Common Multiple (LCM) of 31868 and 31885 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 31868 and 31885. First we will calculate the prime factors of 31868 and 31885.

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 31885

Prime factors of 31885 are 5, 7, 911. Prime factorization of 31885 in exponential form is:

31885 = 51 × 71 × 9111

Now multiplying the highest exponent prime factors to calculate the LCM of 31868 and 31885.

LCM(31868,31885) = 22 × 311 × 2571 × 51 × 71 × 9111
LCM(31868,31885) = 1016111180