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What is the Least Common Multiple of 12968 and 12981?

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 12968 and 12981 is 168337608.

LCM(12968,12981) = 168337608

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Least Common Multiple of 12968 and 12981 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 12968 and 12981, than apply into the LCM equation.

GCF(12968,12981) = 1
LCM(12968,12981) = ( 12968 × 12981) / 1
LCM(12968,12981) = 168337608 / 1
LCM(12968,12981) = 168337608

Least Common Multiple (LCM) of 12968 and 12981 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 12968 and 12981. First we will calculate the prime factors of 12968 and 12981.

Prime Factorization of 12968

Prime factors of 12968 are 2, 1621. Prime factorization of 12968 in exponential form is:

12968 = 23 × 16211

Prime Factorization of 12981

Prime factors of 12981 are 3, 4327. Prime factorization of 12981 in exponential form is:

12981 = 31 × 43271

Now multiplying the highest exponent prime factors to calculate the LCM of 12968 and 12981.

LCM(12968,12981) = 23 × 16211 × 31 × 43271
LCM(12968,12981) = 168337608