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What is the Least Common Multiple of 19837 and 19842?

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 19837 and 19842 is 393605754.

LCM(19837,19842) = 393605754

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Least Common Multiple of 19837 and 19842 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 19837 and 19842, than apply into the LCM equation.

GCF(19837,19842) = 1
LCM(19837,19842) = ( 19837 × 19842) / 1
LCM(19837,19842) = 393605754 / 1
LCM(19837,19842) = 393605754

Least Common Multiple (LCM) of 19837 and 19842 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 19837 and 19842. First we will calculate the prime factors of 19837 and 19842.

Prime Factorization of 19837

Prime factors of 19837 are 83, 239. Prime factorization of 19837 in exponential form is:

19837 = 831 × 2391

Prime Factorization of 19842

Prime factors of 19842 are 2, 3, 3307. Prime factorization of 19842 in exponential form is:

19842 = 21 × 31 × 33071

Now multiplying the highest exponent prime factors to calculate the LCM of 19837 and 19842.

LCM(19837,19842) = 831 × 2391 × 21 × 31 × 33071
LCM(19837,19842) = 393605754