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What is the Least Common Multiple of 20871 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 20871 and 20882 is 435828222.

LCM(20871,20882) = 435828222

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Least Common Multiple of 20871 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 20871 and 20882, than apply into the LCM equation.

GCF(20871,20882) = 1
LCM(20871,20882) = ( 20871 × 20882) / 1
LCM(20871,20882) = 435828222 / 1
LCM(20871,20882) = 435828222

Least Common Multiple (LCM) of 20871 and 20882 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 20871 and 20882. First we will calculate the prime factors of 20871 and 20882.

Prime Factorization of 20871

Prime factors of 20871 are 3, 773. Prime factorization of 20871 in exponential form is:

20871 = 33 × 7731

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 20871 and 20882.

LCM(20871,20882) = 33 × 7731 × 21 × 531 × 1971
LCM(20871,20882) = 435828222