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What is the Least Common Multiple of 39786 and 39794?

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 39786 and 39794 is 791622042.

LCM(39786,39794) = 791622042

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Least Common Multiple of 39786 and 39794 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 39786 and 39794, than apply into the LCM equation.

GCF(39786,39794) = 2
LCM(39786,39794) = ( 39786 × 39794) / 2
LCM(39786,39794) = 1583244084 / 2
LCM(39786,39794) = 791622042

Least Common Multiple (LCM) of 39786 and 39794 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 39786 and 39794. First we will calculate the prime factors of 39786 and 39794.

Prime Factorization of 39786

Prime factors of 39786 are 2, 3, 19, 349. Prime factorization of 39786 in exponential form is:

39786 = 21 × 31 × 191 × 3491

Prime Factorization of 39794

Prime factors of 39794 are 2, 101, 197. Prime factorization of 39794 in exponential form is:

39794 = 21 × 1011 × 1971

Now multiplying the highest exponent prime factors to calculate the LCM of 39786 and 39794.

LCM(39786,39794) = 21 × 31 × 191 × 3491 × 1011 × 1971
LCM(39786,39794) = 791622042