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What is the Least Common Multiple of 18394 and 18406?

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 18394 and 18406 is 169279982.

LCM(18394,18406) = 169279982

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Least Common Multiple of 18394 and 18406 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 18394 and 18406, than apply into the LCM equation.

GCF(18394,18406) = 2
LCM(18394,18406) = ( 18394 × 18406) / 2
LCM(18394,18406) = 338559964 / 2
LCM(18394,18406) = 169279982

Least Common Multiple (LCM) of 18394 and 18406 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 18394 and 18406. First we will calculate the prime factors of 18394 and 18406.

Prime Factorization of 18394

Prime factors of 18394 are 2, 17, 541. Prime factorization of 18394 in exponential form is:

18394 = 21 × 171 × 5411

Prime Factorization of 18406

Prime factors of 18406 are 2, 9203. Prime factorization of 18406 in exponential form is:

18406 = 21 × 92031

Now multiplying the highest exponent prime factors to calculate the LCM of 18394 and 18406.

LCM(18394,18406) = 21 × 171 × 5411 × 92031
LCM(18394,18406) = 169279982