Why can these always be expressed as the difference of two perfect squares? Or do I need to know modular arithmetic to understand (I'm A level)? Is there anything similar for primes in the form 4p-1?
Primes in the form 4p+1 Watch
- Thread Starter
- 12-11-2008 22:20
- 12-11-2008 22:33
You're going to need some level of understanding of modular arithmetic, I think.