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What is the Least Common Multiple of 20364 and 20381?

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 20364 and 20381 is 415038684.

LCM(20364,20381) = 415038684

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Least Common Multiple of 20364 and 20381 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 20364 and 20381, than apply into the LCM equation.

GCF(20364,20381) = 1
LCM(20364,20381) = ( 20364 × 20381) / 1
LCM(20364,20381) = 415038684 / 1
LCM(20364,20381) = 415038684

Least Common Multiple (LCM) of 20364 and 20381 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 20364 and 20381. First we will calculate the prime factors of 20364 and 20381.

Prime Factorization of 20364

Prime factors of 20364 are 2, 3, 1697. Prime factorization of 20364 in exponential form is:

20364 = 22 × 31 × 16971

Prime Factorization of 20381

Prime factors of 20381 are 89, 229. Prime factorization of 20381 in exponential form is:

20381 = 891 × 2291

Now multiplying the highest exponent prime factors to calculate the LCM of 20364 and 20381.

LCM(20364,20381) = 22 × 31 × 16971 × 891 × 2291
LCM(20364,20381) = 415038684