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What is the Least Common Multiple of 20828 and 20841?

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 20828 and 20841 is 434076348.

LCM(20828,20841) = 434076348

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Least Common Multiple of 20828 and 20841 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 20828 and 20841, than apply into the LCM equation.

GCF(20828,20841) = 1
LCM(20828,20841) = ( 20828 × 20841) / 1
LCM(20828,20841) = 434076348 / 1
LCM(20828,20841) = 434076348

Least Common Multiple (LCM) of 20828 and 20841 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 20828 and 20841. First we will calculate the prime factors of 20828 and 20841.

Prime Factorization of 20828

Prime factors of 20828 are 2, 41, 127. Prime factorization of 20828 in exponential form is:

20828 = 22 × 411 × 1271

Prime Factorization of 20841

Prime factors of 20841 are 3, 6947. Prime factorization of 20841 in exponential form is:

20841 = 31 × 69471

Now multiplying the highest exponent prime factors to calculate the LCM of 20828 and 20841.

LCM(20828,20841) = 22 × 411 × 1271 × 31 × 69471
LCM(20828,20841) = 434076348