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What is the Least Common Multiple of 28394 and 28406?

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 28394 and 28406 is 403279982.

LCM(28394,28406) = 403279982

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Least Common Multiple of 28394 and 28406 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 28394 and 28406, than apply into the LCM equation.

GCF(28394,28406) = 2
LCM(28394,28406) = ( 28394 × 28406) / 2
LCM(28394,28406) = 806559964 / 2
LCM(28394,28406) = 403279982

Least Common Multiple (LCM) of 28394 and 28406 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 28394 and 28406. First we will calculate the prime factors of 28394 and 28406.

Prime Factorization of 28394

Prime factors of 28394 are 2, 14197. Prime factorization of 28394 in exponential form is:

28394 = 21 × 141971

Prime Factorization of 28406

Prime factors of 28406 are 2, 7, 2029. Prime factorization of 28406 in exponential form is:

28406 = 21 × 71 × 20291

Now multiplying the highest exponent prime factors to calculate the LCM of 28394 and 28406.

LCM(28394,28406) = 21 × 141971 × 71 × 20291
LCM(28394,28406) = 403279982