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What is the Least Common Multiple of 65989 and 66001?

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 65989 and 66001 is 4355339989.

LCM(65989,66001) = 4355339989

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Least Common Multiple of 65989 and 66001 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 65989 and 66001, than apply into the LCM equation.

GCF(65989,66001) = 1
LCM(65989,66001) = ( 65989 × 66001) / 1
LCM(65989,66001) = 4355339989 / 1
LCM(65989,66001) = 4355339989

Least Common Multiple (LCM) of 65989 and 66001 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 65989 and 66001. First we will calculate the prime factors of 65989 and 66001.

Prime Factorization of 65989

Prime factors of 65989 are 7, 11, 857. Prime factorization of 65989 in exponential form is:

65989 = 71 × 111 × 8571

Prime Factorization of 66001

Prime factors of 66001 are 13, 5077. Prime factorization of 66001 in exponential form is:

66001 = 131 × 50771

Now multiplying the highest exponent prime factors to calculate the LCM of 65989 and 66001.

LCM(65989,66001) = 71 × 111 × 8571 × 131 × 50771
LCM(65989,66001) = 4355339989