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What is the Least Common Multiple of 7089 and 7105?

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 7089 and 7105 is 50367345.

LCM(7089,7105) = 50367345

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Least Common Multiple of 7089 and 7105 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 7089 and 7105, than apply into the LCM equation.

GCF(7089,7105) = 1
LCM(7089,7105) = ( 7089 × 7105) / 1
LCM(7089,7105) = 50367345 / 1
LCM(7089,7105) = 50367345

Least Common Multiple (LCM) of 7089 and 7105 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 7089 and 7105. First we will calculate the prime factors of 7089 and 7105.

Prime Factorization of 7089

Prime factors of 7089 are 3, 17, 139. Prime factorization of 7089 in exponential form is:

7089 = 31 × 171 × 1391

Prime Factorization of 7105

Prime factors of 7105 are 5, 7, 29. Prime factorization of 7105 in exponential form is:

7105 = 51 × 72 × 291

Now multiplying the highest exponent prime factors to calculate the LCM of 7089 and 7105.

LCM(7089,7105) = 31 × 171 × 1391 × 51 × 72 × 291
LCM(7089,7105) = 50367345