When we calculate modulo for to we get: .
As we see all possible values from to occur. So is a primitive root of .
But there is more:
If we take a closer look we see: .
So the powers of are cyclic with period , and . is called a Fibonacci primitive root of .
Not every prime has a Fibonacci primitive root.
There are primes less than with one or more Fibonacci primitive roots and the sum of these primes is .
Find the sum of the primes less than with at least one Fibonacci primitive root.
Write-up coming later
The complete problem is available here. An approach, code, and answer will be added later.