Hi guys. What's the best project to find a Prime? Can i leave all projects enabled or should i enable only 1 (or more) specific project?
Any suggestion?

Anyway how many time took for u to find your 1st Prime?

Have i a chance to find a Prime with a GT 710 and GT 1030? I mean...in a reasonable time :-D

More computers gives you more chances, there is a thread somewhere about using a 'virtual gpu' too.

Since it hasn't been mentioned already, is the goal just to find any prime number, or specifically is the target to find one that is top 5000 known?

AP27 if you don't care at all about size. This can find sequences small primes quickly. The individual primes themselves are not of significant note.

Bigger but not top 5000 primes would be GFN15 for GPU and SGS for CPU.

For top 5000 primes, that would be GFN16 and PPSE.

Based on my joining of this site and my first recorded (then top 5000) prime, it was somewhere under 3 months.

Since it hasn't been mentioned already, is the goal just to find any prime number, or specifically is the target to find one that is top 5000 known?

AP27 if you don't care at all about size. This can find sequences small primes quickly. The individual primes themselves are not of significant note.

Bigger but not top 5000 primes would be GFN15 for GPU and SGS for CPU.

For top 5000 primes, that would be GFN16 and PPSE.

Based on my joining of this site and my first recorded (then top 5000) prime, it was somewhere under 3 months.

Since it hasn't been mentioned already, is the goal just to find any prime number, or specifically is the target to find one that is top 5000 known?

AP27 if you don't care at all about size. This can find sequences small primes quickly. The individual primes themselves are not of significant note.

Bigger but not top 5000 primes would be GFN15 for GPU and SGS for CPU.

For top 5000 primes, that would be GFN16 and PPSE.

Based on my joining of this site and my first recorded (then top 5000) prime, it was somewhere under 3 months.

Bro I think that was 12 years ago..???
The sizes are drastically different now.

So this thread is the ONLY one he can post in then as his RAC is zero?

Just for info:

GFN 16 = 30m with GT 710
GFN 16 = 10m with GT 1030

GFN 15 = 2m with GT 1030.

Soon i will add a GTX 1060. Maybe i reach 3m for task in GFN 16.

The Problems and Help section is the only section visible if you have 0 total credit.

You can check the Stats page for each project to see how many primes were discovered on average in the past. That gives you some idea how things will proceed, even though primes generally get more scarce with increasing digits.

You can also check average computation times on the properties page where you select which subprojects to run and combine this with the above mentioned data to calculate how long it takes to find a prime - approximately.

Another thing to take into account is, are you after primes for listing in T5K, i.e. primes that have at least 450,000 or so digits? Then don't run GF-15 or SGS. The main page lists the current max digits for each subproject and the respective entry position for T5K. Also, are you fine with only being the double checker? If not, some projects are dominated by fast computers and should be avoided - you can find this only by trying it out.

I have my old i3-2120 almost exclusively on SGS as there's the good chance of 1-(1/e) or almost 64% to find a prime every 14,000 tasks, which in my case is every 100 days or a bit less. It won't be eligible for entry in T5K, but I get about 45% first and there's always the slim chance of actually finding a twin or even SG prime. I actually found one after 7500 tasks, not a twin/SG/T5K prime, but still fun.


Long story short, it depends on what you're after. You can use the stats page and the properties page and the main page to find all the data required for a decision (other than 1st percentage for you hardware of course).

One last thing, you might want to read about the different conjectures like Sierpinski or Riesel or special primes such as Cullen or Woodall. Even though finding a prime in those subprojects is very rare, if you find one it's a big deal even though it might not be a really large prime. When I started I was only interested in finding any prime quickly, while now those special primes are much more interesting to me.