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What is the Least Common Multiple of 12784 and 12804?

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 12784 and 12804 is 40921584.

LCM(12784,12804) = 40921584

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Least Common Multiple of 12784 and 12804 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 12784 and 12804, than apply into the LCM equation.

GCF(12784,12804) = 4
LCM(12784,12804) = ( 12784 × 12804) / 4
LCM(12784,12804) = 163686336 / 4
LCM(12784,12804) = 40921584

Least Common Multiple (LCM) of 12784 and 12804 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 12784 and 12804. First we will calculate the prime factors of 12784 and 12804.

Prime Factorization of 12784

Prime factors of 12784 are 2, 17, 47. Prime factorization of 12784 in exponential form is:

12784 = 24 × 171 × 471

Prime Factorization of 12804

Prime factors of 12804 are 2, 3, 11, 97. Prime factorization of 12804 in exponential form is:

12804 = 22 × 31 × 111 × 971

Now multiplying the highest exponent prime factors to calculate the LCM of 12784 and 12804.

LCM(12784,12804) = 24 × 171 × 471 × 31 × 111 × 971
LCM(12784,12804) = 40921584