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What is the Least Common Multiple of 28555 and 28571?

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 28555 and 28571 is 815844905.

LCM(28555,28571) = 815844905

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Least Common Multiple of 28555 and 28571 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 28555 and 28571, than apply into the LCM equation.

GCF(28555,28571) = 1
LCM(28555,28571) = ( 28555 × 28571) / 1
LCM(28555,28571) = 815844905 / 1
LCM(28555,28571) = 815844905

Least Common Multiple (LCM) of 28555 and 28571 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 28555 and 28571. First we will calculate the prime factors of 28555 and 28571.

Prime Factorization of 28555

Prime factors of 28555 are 5, 5711. Prime factorization of 28555 in exponential form is:

28555 = 51 × 57111

Prime Factorization of 28571

Prime factors of 28571 are 28571. Prime factorization of 28571 in exponential form is:

28571 = 285711

Now multiplying the highest exponent prime factors to calculate the LCM of 28555 and 28571.

LCM(28555,28571) = 51 × 57111 × 285711
LCM(28555,28571) = 815844905