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What is the Least Common Multiple of 31836 and 31855?

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 31836 and 31855 is 1014135780.

LCM(31836,31855) = 1014135780

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Least Common Multiple of 31836 and 31855 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 31836 and 31855, than apply into the LCM equation.

GCF(31836,31855) = 1
LCM(31836,31855) = ( 31836 × 31855) / 1
LCM(31836,31855) = 1014135780 / 1
LCM(31836,31855) = 1014135780

Least Common Multiple (LCM) of 31836 and 31855 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 31836 and 31855. First we will calculate the prime factors of 31836 and 31855.

Prime Factorization of 31836

Prime factors of 31836 are 2, 3, 7, 379. Prime factorization of 31836 in exponential form is:

31836 = 22 × 31 × 71 × 3791

Prime Factorization of 31855

Prime factors of 31855 are 5, 23, 277. Prime factorization of 31855 in exponential form is:

31855 = 51 × 231 × 2771

Now multiplying the highest exponent prime factors to calculate the LCM of 31836 and 31855.

LCM(31836,31855) = 22 × 31 × 71 × 3791 × 51 × 231 × 2771
LCM(31836,31855) = 1014135780