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What is the Least Common Multiple of 31487 and 31505?

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 31487 and 31505 is 991997935.

LCM(31487,31505) = 991997935

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Least Common Multiple of 31487 and 31505 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 31487 and 31505, than apply into the LCM equation.

GCF(31487,31505) = 1
LCM(31487,31505) = ( 31487 × 31505) / 1
LCM(31487,31505) = 991997935 / 1
LCM(31487,31505) = 991997935

Least Common Multiple (LCM) of 31487 and 31505 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 31487 and 31505. First we will calculate the prime factors of 31487 and 31505.

Prime Factorization of 31487

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

31487 = 231 × 372

Prime Factorization of 31505

Prime factors of 31505 are 5, 6301. Prime factorization of 31505 in exponential form is:

31505 = 51 × 63011

Now multiplying the highest exponent prime factors to calculate the LCM of 31487 and 31505.

LCM(31487,31505) = 231 × 372 × 51 × 63011
LCM(31487,31505) = 991997935