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What is the Least Common Multiple of 75789 and 75803?

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 75803 is 820719081.

LCM(75789,75803) = 820719081

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Least Common Multiple of 75789 and 75803 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 75803, than apply into the LCM equation.

GCF(75789,75803) = 7
LCM(75789,75803) = ( 75789 × 75803) / 7
LCM(75789,75803) = 5745033567 / 7
LCM(75789,75803) = 820719081

Least Common Multiple (LCM) of 75789 and 75803 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 75789 and 75803. First we will calculate the prime factors of 75789 and 75803.

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 75803

Prime factors of 75803 are 7, 13, 17. Prime factorization of 75803 in exponential form is:

75803 = 73 × 131 × 171

Now multiplying the highest exponent prime factors to calculate the LCM of 75789 and 75803.

LCM(75789,75803) = 33 × 73 × 4011 × 131 × 171
LCM(75789,75803) = 820719081