Answer by Krave37 for A confusion in understanding a solution to a number...
The example stated means that as already $2$ values of $k$( $k \equiv 0 \mod{p}$ and $k \equiv p-1 \mod{p}$) give the same remainder($k^2+k \equiv 0 \mod{p}$), then there are $p-2$(congruent to...
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A confusion in understanding a solution to a number theory problem
Prove that there exists a positive integer n, such that for allintegers $k$ the number $k^2+k+n$ has no prime divisors less than$2008$.Here is the solution my book gaveI don't understand why such $r$...
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