one of the "maths challenge" questions. one of the only ones i couldn't do :S I've tried for a good number of hours, but havnt found a way to do it. I feel any more time would just be brute forcing it which i wouldnt have time for in the exam anyways.(adsbygoogle = window.adsbygoogle || []).push({});

hope you can help

1. The problem statement, all variables and given/known data

X is a positive integer in which each digit is 1; that is, X is of the form 111111....

Given that every digit of the integer pX^2 + qX + r (where p, q, and r are fixed integer coefficients and p > 0) is also 1. Irrespective of the number of digits X. Which of the following is a possible value of q?

2. Relevant equations

3. The attempt at a solution

:S

thanks

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# Homework Help: Number problem

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