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What is the Least Common Multiple of 31366 and 31380?

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 31366 and 31380 is 492132540.

LCM(31366,31380) = 492132540

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Least Common Multiple of 31366 and 31380 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 31366 and 31380, than apply into the LCM equation.

GCF(31366,31380) = 2
LCM(31366,31380) = ( 31366 × 31380) / 2
LCM(31366,31380) = 984265080 / 2
LCM(31366,31380) = 492132540

Least Common Multiple (LCM) of 31366 and 31380 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 31366 and 31380. First we will calculate the prime factors of 31366 and 31380.

Prime Factorization of 31366

Prime factors of 31366 are 2, 15683. Prime factorization of 31366 in exponential form is:

31366 = 21 × 156831

Prime Factorization of 31380

Prime factors of 31380 are 2, 3, 5, 523. Prime factorization of 31380 in exponential form is:

31380 = 22 × 31 × 51 × 5231

Now multiplying the highest exponent prime factors to calculate the LCM of 31366 and 31380.

LCM(31366,31380) = 22 × 156831 × 31 × 51 × 5231
LCM(31366,31380) = 492132540