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What is the Least Common Multiple of 27993 and 28011?

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 27993 and 28011 is 261370641.

LCM(27993,28011) = 261370641

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Least Common Multiple of 27993 and 28011 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 27993 and 28011, than apply into the LCM equation.

GCF(27993,28011) = 3
LCM(27993,28011) = ( 27993 × 28011) / 3
LCM(27993,28011) = 784111923 / 3
LCM(27993,28011) = 261370641

Least Common Multiple (LCM) of 27993 and 28011 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 27993 and 28011. First we will calculate the prime factors of 27993 and 28011.

Prime Factorization of 27993

Prime factors of 27993 are 3, 7, 31, 43. Prime factorization of 27993 in exponential form is:

27993 = 31 × 71 × 311 × 431

Prime Factorization of 28011

Prime factors of 28011 are 3, 9337. Prime factorization of 28011 in exponential form is:

28011 = 31 × 93371

Now multiplying the highest exponent prime factors to calculate the LCM of 27993 and 28011.

LCM(27993,28011) = 31 × 71 × 311 × 431 × 93371
LCM(27993,28011) = 261370641