What is the Least Common Multiple of 13689 and 13698?

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 13689 and 13698 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 13689 and 13698, than apply into the LCM equation.

GCF(13689,13698) = 9
LCM(13689,13698) = ( 13689 × 13698) / 9
LCM(13689,13698) = 187511922 / 9
LCM(13689,13698) = 20834658

Least Common Multiple (LCM) of 13689 and 13698 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 13689 and 13698. First we will calculate the prime factors of 13689 and 13698.

Prime Factorization of 13689

Prime Factorization of 13698

Now multiplying the highest exponent prime factors to calculate the LCM of 13689 and 13698.

LCM(13689,13698) = 3⁴ × 13² × 2¹ × 761¹
LCM(13689,13698) = 20834658