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What is the Least Common Multiple of 66728 and 66745?

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 66728 and 66745 is 4453760360.

LCM(66728,66745) = 4453760360

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Least Common Multiple of 66728 and 66745 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 66728 and 66745, than apply into the LCM equation.

GCF(66728,66745) = 1
LCM(66728,66745) = ( 66728 × 66745) / 1
LCM(66728,66745) = 4453760360 / 1
LCM(66728,66745) = 4453760360

Least Common Multiple (LCM) of 66728 and 66745 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 66728 and 66745. First we will calculate the prime factors of 66728 and 66745.

Prime Factorization of 66728

Prime factors of 66728 are 2, 19, 439. Prime factorization of 66728 in exponential form is:

66728 = 23 × 191 × 4391

Prime Factorization of 66745

Prime factors of 66745 are 5, 7, 1907. Prime factorization of 66745 in exponential form is:

66745 = 51 × 71 × 19071

Now multiplying the highest exponent prime factors to calculate the LCM of 66728 and 66745.

LCM(66728,66745) = 23 × 191 × 4391 × 51 × 71 × 19071
LCM(66728,66745) = 4453760360