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What is the Least Common Multiple of 31268 and 31285?

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 31268 and 31285 is 978219380.

LCM(31268,31285) = 978219380

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Least Common Multiple of 31268 and 31285 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 31268 and 31285, than apply into the LCM equation.

GCF(31268,31285) = 1
LCM(31268,31285) = ( 31268 × 31285) / 1
LCM(31268,31285) = 978219380 / 1
LCM(31268,31285) = 978219380

Least Common Multiple (LCM) of 31268 and 31285 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 31268 and 31285. First we will calculate the prime factors of 31268 and 31285.

Prime Factorization of 31268

Prime factors of 31268 are 2, 7817. Prime factorization of 31268 in exponential form is:

31268 = 22 × 78171

Prime Factorization of 31285

Prime factors of 31285 are 5, 6257. Prime factorization of 31285 in exponential form is:

31285 = 51 × 62571

Now multiplying the highest exponent prime factors to calculate the LCM of 31268 and 31285.

LCM(31268,31285) = 22 × 78171 × 51 × 62571
LCM(31268,31285) = 978219380