Saved Bookmarks
| 1. |
Why square of a prime number when divided by 12 gives remainder 1? |
|
Answer» −1)(p+1) . Since p is odd, these are two even factors, so the product is DIVISIBLE by 4. Also, one of p-1, p, p+1 MUST be divisible by 3, but since p is prime, it is not divisible by 3. Thus one of p-1, or p+1 must be divisible by THREE |
|