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What is the Least Common Multiple of 28921 and 28939?

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 28921 and 28939 is 836944819.

LCM(28921,28939) = 836944819

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Least Common Multiple of 28921 and 28939 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 28921 and 28939, than apply into the LCM equation.

GCF(28921,28939) = 1
LCM(28921,28939) = ( 28921 × 28939) / 1
LCM(28921,28939) = 836944819 / 1
LCM(28921,28939) = 836944819

Least Common Multiple (LCM) of 28921 and 28939 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 28921 and 28939. First we will calculate the prime factors of 28921 and 28939.

Prime Factorization of 28921

Prime factors of 28921 are 28921. Prime factorization of 28921 in exponential form is:

28921 = 289211

Prime Factorization of 28939

Prime factors of 28939 are 43, 673. Prime factorization of 28939 in exponential form is:

28939 = 431 × 6731

Now multiplying the highest exponent prime factors to calculate the LCM of 28921 and 28939.

LCM(28921,28939) = 289211 × 431 × 6731
LCM(28921,28939) = 836944819