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What is the Least Common Multiple of 12404 and 12416?

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 12404 and 12416 is 38502016.

LCM(12404,12416) = 38502016

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Least Common Multiple of 12404 and 12416 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 12404 and 12416, than apply into the LCM equation.

GCF(12404,12416) = 4
LCM(12404,12416) = ( 12404 × 12416) / 4
LCM(12404,12416) = 154008064 / 4
LCM(12404,12416) = 38502016

Least Common Multiple (LCM) of 12404 and 12416 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 12404 and 12416. First we will calculate the prime factors of 12404 and 12416.

Prime Factorization of 12404

Prime factors of 12404 are 2, 7, 443. Prime factorization of 12404 in exponential form is:

12404 = 22 × 71 × 4431

Prime Factorization of 12416

Prime factors of 12416 are 2, 97. Prime factorization of 12416 in exponential form is:

12416 = 27 × 971

Now multiplying the highest exponent prime factors to calculate the LCM of 12404 and 12416.

LCM(12404,12416) = 27 × 71 × 4431 × 971
LCM(12404,12416) = 38502016