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What is the Least Common Multiple of 12974 and 12984?

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 12974 and 12984 is 84227208.

LCM(12974,12984) = 84227208

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Least Common Multiple of 12974 and 12984 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 12974 and 12984, than apply into the LCM equation.

GCF(12974,12984) = 2
LCM(12974,12984) = ( 12974 × 12984) / 2
LCM(12974,12984) = 168454416 / 2
LCM(12974,12984) = 84227208

Least Common Multiple (LCM) of 12974 and 12984 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 12974 and 12984. First we will calculate the prime factors of 12974 and 12984.

Prime Factorization of 12974

Prime factors of 12974 are 2, 13, 499. Prime factorization of 12974 in exponential form is:

12974 = 21 × 131 × 4991

Prime Factorization of 12984

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

12984 = 23 × 31 × 5411

Now multiplying the highest exponent prime factors to calculate the LCM of 12974 and 12984.

LCM(12974,12984) = 23 × 131 × 4991 × 31 × 5411
LCM(12974,12984) = 84227208