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What is the Least Common Multiple of 28901 and 28905?

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 28901 and 28905 is 835383405.

LCM(28901,28905) = 835383405

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Least Common Multiple of 28901 and 28905 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 28901 and 28905, than apply into the LCM equation.

GCF(28901,28905) = 1
LCM(28901,28905) = ( 28901 × 28905) / 1
LCM(28901,28905) = 835383405 / 1
LCM(28901,28905) = 835383405

Least Common Multiple (LCM) of 28901 and 28905 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 28901 and 28905. First we will calculate the prime factors of 28901 and 28905.

Prime Factorization of 28901

Prime factors of 28901 are 28901. Prime factorization of 28901 in exponential form is:

28901 = 289011

Prime Factorization of 28905

Prime factors of 28905 are 3, 5, 41, 47. Prime factorization of 28905 in exponential form is:

28905 = 31 × 51 × 411 × 471

Now multiplying the highest exponent prime factors to calculate the LCM of 28901 and 28905.

LCM(28901,28905) = 289011 × 31 × 51 × 411 × 471
LCM(28901,28905) = 835383405