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What is the Least Common Multiple of 20869 and 20882?

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 20869 and 20882 is 435786458.

LCM(20869,20882) = 435786458

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Least Common Multiple of 20869 and 20882 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 20869 and 20882, than apply into the LCM equation.

GCF(20869,20882) = 1
LCM(20869,20882) = ( 20869 × 20882) / 1
LCM(20869,20882) = 435786458 / 1
LCM(20869,20882) = 435786458

Least Common Multiple (LCM) of 20869 and 20882 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 20869 and 20882. First we will calculate the prime factors of 20869 and 20882.

Prime Factorization of 20869

Prime factors of 20869 are 41, 509. Prime factorization of 20869 in exponential form is:

20869 = 411 × 5091

Prime Factorization of 20882

Prime factors of 20882 are 2, 53, 197. Prime factorization of 20882 in exponential form is:

20882 = 21 × 531 × 1971

Now multiplying the highest exponent prime factors to calculate the LCM of 20869 and 20882.

LCM(20869,20882) = 411 × 5091 × 21 × 531 × 1971
LCM(20869,20882) = 435786458