Problem

Source: 2017 Ecuador Juniors (OMEC) L2 p5

Tags: number theory, consecutive, coprime, Divisors



Two positive integers are coprime if their greatest common divisor is $1$. Let $C$ be the set of all divisors of the number $8775$ that are greater than $ 1$. A set of $k$ consecutive positive integers satisfies that each of them is coprime with some element of $C$. Determine the largest possible value of $K$.