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What is the Least Common Multiple of 31473 and 31487?

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 31473 and 31487 is 990990351.

LCM(31473,31487) = 990990351

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Least Common Multiple of 31473 and 31487 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 31473 and 31487, than apply into the LCM equation.

GCF(31473,31487) = 1
LCM(31473,31487) = ( 31473 × 31487) / 1
LCM(31473,31487) = 990990351 / 1
LCM(31473,31487) = 990990351

Least Common Multiple (LCM) of 31473 and 31487 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 31473 and 31487. First we will calculate the prime factors of 31473 and 31487.

Prime Factorization of 31473

Prime factors of 31473 are 3, 13, 269. Prime factorization of 31473 in exponential form is:

31473 = 32 × 131 × 2691

Prime Factorization of 31487

Prime factors of 31487 are 23, 37. Prime factorization of 31487 in exponential form is:

31487 = 231 × 372

Now multiplying the highest exponent prime factors to calculate the LCM of 31473 and 31487.

LCM(31473,31487) = 32 × 131 × 2691 × 231 × 372
LCM(31473,31487) = 990990351