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What is the Least Common Multiple of 31861 and 31865?

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 31861 and 31865 is 1015250765.

LCM(31861,31865) = 1015250765

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Least Common Multiple of 31861 and 31865 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 31861 and 31865, than apply into the LCM equation.

GCF(31861,31865) = 1
LCM(31861,31865) = ( 31861 × 31865) / 1
LCM(31861,31865) = 1015250765 / 1
LCM(31861,31865) = 1015250765

Least Common Multiple (LCM) of 31861 and 31865 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 31861 and 31865. First we will calculate the prime factors of 31861 and 31865.

Prime Factorization of 31861

Prime factors of 31861 are 151, 211. Prime factorization of 31861 in exponential form is:

31861 = 1511 × 2111

Prime Factorization of 31865

Prime factors of 31865 are 5, 6373. Prime factorization of 31865 in exponential form is:

31865 = 51 × 63731

Now multiplying the highest exponent prime factors to calculate the LCM of 31861 and 31865.

LCM(31861,31865) = 1511 × 2111 × 51 × 63731
LCM(31861,31865) = 1015250765