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What is the Least Common Multiple of 85983 and 85987?

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 85983 and 85987 is 7393420221.

LCM(85983,85987) = 7393420221

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Least Common Multiple of 85983 and 85987 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 85983 and 85987, than apply into the LCM equation.

GCF(85983,85987) = 1
LCM(85983,85987) = ( 85983 × 85987) / 1
LCM(85983,85987) = 7393420221 / 1
LCM(85983,85987) = 7393420221

Least Common Multiple (LCM) of 85983 and 85987 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 85983 and 85987. First we will calculate the prime factors of 85983 and 85987.

Prime Factorization of 85983

Prime factors of 85983 are 3, 28661. Prime factorization of 85983 in exponential form is:

85983 = 31 × 286611

Prime Factorization of 85987

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

85987 = 111 × 78171

Now multiplying the highest exponent prime factors to calculate the LCM of 85983 and 85987.

LCM(85983,85987) = 31 × 286611 × 111 × 78171
LCM(85983,85987) = 7393420221