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What is the Least Common Multiple of 28427 and 28443?

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 28427 and 28443 is 808549161.

LCM(28427,28443) = 808549161

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Least Common Multiple of 28427 and 28443 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 28427 and 28443, than apply into the LCM equation.

GCF(28427,28443) = 1
LCM(28427,28443) = ( 28427 × 28443) / 1
LCM(28427,28443) = 808549161 / 1
LCM(28427,28443) = 808549161

Least Common Multiple (LCM) of 28427 and 28443 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 28427 and 28443. First we will calculate the prime factors of 28427 and 28443.

Prime Factorization of 28427

Prime factors of 28427 are 7, 31, 131. Prime factorization of 28427 in exponential form is:

28427 = 71 × 311 × 1311

Prime Factorization of 28443

Prime factors of 28443 are 3, 19, 499. Prime factorization of 28443 in exponential form is:

28443 = 31 × 191 × 4991

Now multiplying the highest exponent prime factors to calculate the LCM of 28427 and 28443.

LCM(28427,28443) = 71 × 311 × 1311 × 31 × 191 × 4991
LCM(28427,28443) = 808549161