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What is the Least Common Multiple of 31932 and 31940?

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 31932 and 31940 is 254977020.

LCM(31932,31940) = 254977020

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Least Common Multiple of 31932 and 31940 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 31932 and 31940, than apply into the LCM equation.

GCF(31932,31940) = 4
LCM(31932,31940) = ( 31932 × 31940) / 4
LCM(31932,31940) = 1019908080 / 4
LCM(31932,31940) = 254977020

Least Common Multiple (LCM) of 31932 and 31940 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 31932 and 31940. First we will calculate the prime factors of 31932 and 31940.

Prime Factorization of 31932

Prime factors of 31932 are 2, 3, 887. Prime factorization of 31932 in exponential form is:

31932 = 22 × 32 × 8871

Prime Factorization of 31940

Prime factors of 31940 are 2, 5, 1597. Prime factorization of 31940 in exponential form is:

31940 = 22 × 51 × 15971

Now multiplying the highest exponent prime factors to calculate the LCM of 31932 and 31940.

LCM(31932,31940) = 22 × 32 × 8871 × 51 × 15971
LCM(31932,31940) = 254977020