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What is the Least Common Multiple of 81589 and 81606?

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 81589 and 81606 is 6658151934.

LCM(81589,81606) = 6658151934

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Least Common Multiple of 81589 and 81606 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 81589 and 81606, than apply into the LCM equation.

GCF(81589,81606) = 1
LCM(81589,81606) = ( 81589 × 81606) / 1
LCM(81589,81606) = 6658151934 / 1
LCM(81589,81606) = 6658151934

Least Common Multiple (LCM) of 81589 and 81606 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 81589 and 81606. First we will calculate the prime factors of 81589 and 81606.

Prime Factorization of 81589

Prime factors of 81589 are 83, 983. Prime factorization of 81589 in exponential form is:

81589 = 831 × 9831

Prime Factorization of 81606

Prime factors of 81606 are 2, 3, 7, 29, 67. Prime factorization of 81606 in exponential form is:

81606 = 21 × 31 × 71 × 291 × 671

Now multiplying the highest exponent prime factors to calculate the LCM of 81589 and 81606.

LCM(81589,81606) = 831 × 9831 × 21 × 31 × 71 × 291 × 671
LCM(81589,81606) = 6658151934