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What is the Least Common Multiple of 20833 and 20838?

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 20833 and 20838 is 434118054.

LCM(20833,20838) = 434118054

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Least Common Multiple of 20833 and 20838 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 20833 and 20838, than apply into the LCM equation.

GCF(20833,20838) = 1
LCM(20833,20838) = ( 20833 × 20838) / 1
LCM(20833,20838) = 434118054 / 1
LCM(20833,20838) = 434118054

Least Common Multiple (LCM) of 20833 and 20838 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 20833 and 20838. First we will calculate the prime factors of 20833 and 20838.

Prime Factorization of 20833

Prime factors of 20833 are 83, 251. Prime factorization of 20833 in exponential form is:

20833 = 831 × 2511

Prime Factorization of 20838

Prime factors of 20838 are 2, 3, 23, 151. Prime factorization of 20838 in exponential form is:

20838 = 21 × 31 × 231 × 1511

Now multiplying the highest exponent prime factors to calculate the LCM of 20833 and 20838.

LCM(20833,20838) = 831 × 2511 × 21 × 31 × 231 × 1511
LCM(20833,20838) = 434118054