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What is the Least Common Multiple of 20881 and 20892?

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 20881 and 20892 is 436245852.

LCM(20881,20892) = 436245852

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Least Common Multiple of 20881 and 20892 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 20881 and 20892, than apply into the LCM equation.

GCF(20881,20892) = 1
LCM(20881,20892) = ( 20881 × 20892) / 1
LCM(20881,20892) = 436245852 / 1
LCM(20881,20892) = 436245852

Least Common Multiple (LCM) of 20881 and 20892 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 20881 and 20892. First we will calculate the prime factors of 20881 and 20892.

Prime Factorization of 20881

Prime factors of 20881 are 7, 19, 157. Prime factorization of 20881 in exponential form is:

20881 = 71 × 191 × 1571

Prime Factorization of 20892

Prime factors of 20892 are 2, 3, 1741. Prime factorization of 20892 in exponential form is:

20892 = 22 × 31 × 17411

Now multiplying the highest exponent prime factors to calculate the LCM of 20881 and 20892.

LCM(20881,20892) = 71 × 191 × 1571 × 22 × 31 × 17411
LCM(20881,20892) = 436245852