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What is the Least Common Multiple of 85987 and 85994?

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 85987 and 85994 is 7394366078.

LCM(85987,85994) = 7394366078

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Least Common Multiple of 85987 and 85994 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 85987 and 85994, than apply into the LCM equation.

GCF(85987,85994) = 1
LCM(85987,85994) = ( 85987 × 85994) / 1
LCM(85987,85994) = 7394366078 / 1
LCM(85987,85994) = 7394366078

Least Common Multiple (LCM) of 85987 and 85994 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 85987 and 85994. First we will calculate the prime factors of 85987 and 85994.

Prime Factorization of 85987

Prime factors of 85987 are 11, 7817. Prime factorization of 85987 in exponential form is:

85987 = 111 × 78171

Prime Factorization of 85994

Prime factors of 85994 are 2, 19, 31, 73. Prime factorization of 85994 in exponential form is:

85994 = 21 × 191 × 311 × 731

Now multiplying the highest exponent prime factors to calculate the LCM of 85987 and 85994.

LCM(85987,85994) = 111 × 78171 × 21 × 191 × 311 × 731
LCM(85987,85994) = 7394366078