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What is the Least Common Multiple of 12984 and 12991?

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 12984 and 12991 is 168675144.

LCM(12984,12991) = 168675144

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Least Common Multiple of 12984 and 12991 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 12984 and 12991, than apply into the LCM equation.

GCF(12984,12991) = 1
LCM(12984,12991) = ( 12984 × 12991) / 1
LCM(12984,12991) = 168675144 / 1
LCM(12984,12991) = 168675144

Least Common Multiple (LCM) of 12984 and 12991 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 12984 and 12991. First we will calculate the prime factors of 12984 and 12991.

Prime Factorization of 12984

Prime factors of 12984 are 2, 3, 541. Prime factorization of 12984 in exponential form is:

12984 = 23 × 31 × 5411

Prime Factorization of 12991

Prime factors of 12991 are 11, 1181. Prime factorization of 12991 in exponential form is:

12991 = 111 × 11811

Now multiplying the highest exponent prime factors to calculate the LCM of 12984 and 12991.

LCM(12984,12991) = 23 × 31 × 5411 × 111 × 11811
LCM(12984,12991) = 168675144