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What is the Least Common Multiple of 28854 and 28865?

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 28854 and 28865 is 832870710.

LCM(28854,28865) = 832870710

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Least Common Multiple of 28854 and 28865 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 28854 and 28865, than apply into the LCM equation.

GCF(28854,28865) = 1
LCM(28854,28865) = ( 28854 × 28865) / 1
LCM(28854,28865) = 832870710 / 1
LCM(28854,28865) = 832870710

Least Common Multiple (LCM) of 28854 and 28865 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 28854 and 28865. First we will calculate the prime factors of 28854 and 28865.

Prime Factorization of 28854

Prime factors of 28854 are 2, 3, 7, 229. Prime factorization of 28854 in exponential form is:

28854 = 21 × 32 × 71 × 2291

Prime Factorization of 28865

Prime factors of 28865 are 5, 23, 251. Prime factorization of 28865 in exponential form is:

28865 = 51 × 231 × 2511

Now multiplying the highest exponent prime factors to calculate the LCM of 28854 and 28865.

LCM(28854,28865) = 21 × 32 × 71 × 2291 × 51 × 231 × 2511
LCM(28854,28865) = 832870710