I haven't the faintest idea how to do this. The homework question reads:
Find all positive integer n such that . Briefly explain why.
I know that:
- if is prime, then .
- if , where and are distinct primes, then .
- if then .
- if , where are distinct primes, then (which is really just a generalization of step 3).
I can't find any other info about in my notes or in the chapters we've done this semester.
I only come up with the answer . But the question wants all values of which result in .
How do I do this please?