Discussion
If x and y are prime numbers such
that x > y > 2, then x2 - y2 must
be divisible by which one of the following numbers?
*This question is included in Nova Press: Set O - Factoring, question #11
| (A) | 3 |
| (B) | ... |
| (C) | ... |
| (D) | ... |
| (E) | ... |
| (F) | ... |
The solution is
Posted: 05/17/2012 05:39
X^2 - y^2 is missing from the question
Posted: 05/19/2012 20:25
Savina, indeed. "... then x^2 - y^2 must be divisible ..." Thanks for pointing it out. It will be fixed in the next update.