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What is the Least Common Multiple of 20837 and 20855?

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 20837 and 20855 is 434555635.

LCM(20837,20855) = 434555635

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Least Common Multiple of 20837 and 20855 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 20837 and 20855, than apply into the LCM equation.

GCF(20837,20855) = 1
LCM(20837,20855) = ( 20837 × 20855) / 1
LCM(20837,20855) = 434555635 / 1
LCM(20837,20855) = 434555635

Least Common Multiple (LCM) of 20837 and 20855 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 20837 and 20855. First we will calculate the prime factors of 20837 and 20855.

Prime Factorization of 20837

Prime factors of 20837 are 67, 311. Prime factorization of 20837 in exponential form is:

20837 = 671 × 3111

Prime Factorization of 20855

Prime factors of 20855 are 5, 43, 97. Prime factorization of 20855 in exponential form is:

20855 = 51 × 431 × 971

Now multiplying the highest exponent prime factors to calculate the LCM of 20837 and 20855.

LCM(20837,20855) = 671 × 3111 × 51 × 431 × 971
LCM(20837,20855) = 434555635