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What is the Least Common Multiple of 85823 and 85842?

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 85823 and 85842 is 387748314.

LCM(85823,85842) = 387748314

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Least Common Multiple of 85823 and 85842 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 85823 and 85842, than apply into the LCM equation.

GCF(85823,85842) = 19
LCM(85823,85842) = ( 85823 × 85842) / 19
LCM(85823,85842) = 7367217966 / 19
LCM(85823,85842) = 387748314

Least Common Multiple (LCM) of 85823 and 85842 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 85823 and 85842. First we will calculate the prime factors of 85823 and 85842.

Prime Factorization of 85823

Prime factors of 85823 are 19, 4517. Prime factorization of 85823 in exponential form is:

85823 = 191 × 45171

Prime Factorization of 85842

Prime factors of 85842 are 2, 3, 19, 251. Prime factorization of 85842 in exponential form is:

85842 = 21 × 32 × 191 × 2511

Now multiplying the highest exponent prime factors to calculate the LCM of 85823 and 85842.

LCM(85823,85842) = 191 × 45171 × 21 × 32 × 2511
LCM(85823,85842) = 387748314