What is the Least Common Multiple of 12681 and 12689?

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 of 12681 and 12689 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 12681 and 12689, than apply into the LCM equation.

GCF(12681,12689) = 1
LCM(12681,12689) = ( 12681 × 12689) / 1
LCM(12681,12689) = 160909209 / 1
LCM(12681,12689) = 160909209

Least Common Multiple (LCM) of 12681 and 12689 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 12681 and 12689. First we will calculate the prime factors of 12681 and 12689.

Prime Factorization of 12681

Prime Factorization of 12689

Now multiplying the highest exponent prime factors to calculate the LCM of 12681 and 12689.

LCM(12681,12689) = 3² × 1409¹ × 12689¹
LCM(12681,12689) = 160909209