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What is the Least Common Multiple of 12897 and 12903?

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 12897 and 12903 is 55469997.

LCM(12897,12903) = 55469997

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Least Common Multiple of 12897 and 12903 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 12897 and 12903, than apply into the LCM equation.

GCF(12897,12903) = 3
LCM(12897,12903) = ( 12897 × 12903) / 3
LCM(12897,12903) = 166409991 / 3
LCM(12897,12903) = 55469997

Least Common Multiple (LCM) of 12897 and 12903 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 12897 and 12903. First we will calculate the prime factors of 12897 and 12903.

Prime Factorization of 12897

Prime factors of 12897 are 3, 1433. Prime factorization of 12897 in exponential form is:

12897 = 32 × 14331

Prime Factorization of 12903

Prime factors of 12903 are 3, 11, 17, 23. Prime factorization of 12903 in exponential form is:

12903 = 31 × 111 × 171 × 231

Now multiplying the highest exponent prime factors to calculate the LCM of 12897 and 12903.

LCM(12897,12903) = 32 × 14331 × 111 × 171 × 231
LCM(12897,12903) = 55469997