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What is the Least Common Multiple of 31260 and 31279?

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 31260 and 31279 is 977781540.

LCM(31260,31279) = 977781540

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Least Common Multiple of 31260 and 31279 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 31260 and 31279, than apply into the LCM equation.

GCF(31260,31279) = 1
LCM(31260,31279) = ( 31260 × 31279) / 1
LCM(31260,31279) = 977781540 / 1
LCM(31260,31279) = 977781540

Least Common Multiple (LCM) of 31260 and 31279 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 31260 and 31279. First we will calculate the prime factors of 31260 and 31279.

Prime Factorization of 31260

Prime factors of 31260 are 2, 3, 5, 521. Prime factorization of 31260 in exponential form is:

31260 = 22 × 31 × 51 × 5211

Prime Factorization of 31279

Prime factors of 31279 are 31, 1009. Prime factorization of 31279 in exponential form is:

31279 = 311 × 10091

Now multiplying the highest exponent prime factors to calculate the LCM of 31260 and 31279.

LCM(31260,31279) = 22 × 31 × 51 × 5211 × 311 × 10091
LCM(31260,31279) = 977781540