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What is the Least Common Multiple of 75789 and 75805?

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 75789 and 75805 is 5745185145.

LCM(75789,75805) = 5745185145

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Least Common Multiple of 75789 and 75805 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 75789 and 75805, than apply into the LCM equation.

GCF(75789,75805) = 1
LCM(75789,75805) = ( 75789 × 75805) / 1
LCM(75789,75805) = 5745185145 / 1
LCM(75789,75805) = 5745185145

Least Common Multiple (LCM) of 75789 and 75805 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 75789 and 75805. First we will calculate the prime factors of 75789 and 75805.

Prime Factorization of 75789

Prime factors of 75789 are 3, 7, 401. Prime factorization of 75789 in exponential form is:

75789 = 33 × 71 × 4011

Prime Factorization of 75805

Prime factors of 75805 are 5, 15161. Prime factorization of 75805 in exponential form is:

75805 = 51 × 151611

Now multiplying the highest exponent prime factors to calculate the LCM of 75789 and 75805.

LCM(75789,75805) = 33 × 71 × 4011 × 51 × 151611
LCM(75789,75805) = 5745185145