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What is the Least Common Multiple of 20486 and 20504?

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 20486 and 20504 is 210022472.

LCM(20486,20504) = 210022472

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Least Common Multiple of 20486 and 20504 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 20486 and 20504, than apply into the LCM equation.

GCF(20486,20504) = 2
LCM(20486,20504) = ( 20486 × 20504) / 2
LCM(20486,20504) = 420044944 / 2
LCM(20486,20504) = 210022472

Least Common Multiple (LCM) of 20486 and 20504 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 20486 and 20504. First we will calculate the prime factors of 20486 and 20504.

Prime Factorization of 20486

Prime factors of 20486 are 2, 10243. Prime factorization of 20486 in exponential form is:

20486 = 21 × 102431

Prime Factorization of 20504

Prime factors of 20504 are 2, 11, 233. Prime factorization of 20504 in exponential form is:

20504 = 23 × 111 × 2331

Now multiplying the highest exponent prime factors to calculate the LCM of 20486 and 20504.

LCM(20486,20504) = 23 × 102431 × 111 × 2331
LCM(20486,20504) = 210022472