Prime Numbers

[Dingo]

Thanks it the luck of the draw.   I don't know how many units I have done but I started Primegrid 11 Aug 2005 and have found 13 primes and they are spread out over the years.

[JugNut]

Soooo, ummm, lots & lots of time & patience then it seems.   

[Dingo]

Just got an email from Primegrid and I have found a new Prime number.

Dear Primefinder,

Congratulations! Our records indicate that a computer registered by you has found a unique prime number. This computer is running BOINC, is attached to the PrimeGrid project, and is assigned to the Sophie Germain Prime Search. What makes this prime unique is that it's large enough to enter the Top 5000 List in Chris Caldwell's The Largest Known Primes Database.

Since you have auto-reporting selected, the following prime was submitted on your behalf:

Added 116391 : 1081059875535*2^1290000-1 (388341 digits)

If you have any questions or concerns, please contact us and we will surely resolve any problems.

Once again, congratulations on your find! Thank you for participating in PrimeGrid.

PrimeGrid staff

Been about a year since the last one.

List of my prime numbers found

Code Select Expand


rank prime digits who when comment
1498 1081059875535 · 21290000 - 1 388341 L2512 Nov 2013 (Unverified because Untested)
2410 1105 · 21278476 + 1 384863 L2724 Nov 2011
2986 545 · 21185295 + 1 356813 L2724 Oct 2011
4140 1089 · 21111763 + 1 334678 L2724 Sep 2011
5861 8857 · 21013732 + 1 305168 L328 Oct 2012
9565 4187 · 2846987 + 1 254973 L2724 Apr 2012
9759 8379 · 2837818 + 1 252213 L2724 Apr 2012
11741 9045 · 2764411 + 1 230115 L2724 Feb 2012
15693 21703472276295 · 2666666 - 1 200700 L2512 Jul 2011
27199 6321 · 2453116 + 1 136406 L837 May 2009
27276 3351 · 2451825 + 1 136017 L837 May 2009
27315 5185 · 2451006 + 1 135771 L837 May 2009
32501 31330586439 · 2333333 - 1 100354 L328 Jan 2008
33866 15336808641 · 2333333 - 1 100354 L328 Jun 2007

[JugNut]

Cool...     Well done dingo.    + Karma

[Mike Mitchell]

Way to go Dingo, plus one. 

[Dingo]

I found another Prime Number

Congratulations! Our records indicate that a computer registered by you has found a unique prime number. This computer is running BOINC, is attached to the PrimeGrid project, and is assigned to the Proth Prime Search. What makes this prime unique is that it's large enough to enter the Top 5000 List in Chris Caldwell's The Largest Known Primes Database.

Since you have auto-reporting selected, the following prime was submitted on your behalf:

Added 116688 : 803*2^1959445+1 (589855 digits)

If you have any questions or concerns, please contact us and we will surely resolve any problems.

Once again, congratulations on your find! Thank you for participating in PrimeGrid.

PrimeGrid staff

[owner]

Congrats Dingo +1

[Mike Mitchell]

Well done Dingo!  Plus one.

[Dingo]

Found another Prime Number.

Congratulations! Our records indicate that a computer registered by you has found a unique prime number. This computer is running BOINC, is attached to the PrimeGrid project, and is assigned to the Sophie Germain Prime Search. What makes this prime unique is that it's large enough to enter the Top 5000 List in Chris Caldwell's The Largest Known Primes Database.

Since you have auto-reporting selected, the following prime was submitted on your behalf:

Added 116820 : 1159641700815*2^1290000-1 (388341 digits)

If you have any questions or concerns, please contact us and we will surely resolve any problems.

Once again, congratulations on your find! Thank you for participating in PrimeGrid.

PrimeGrid staff

Link here  http://primes.utm.edu/primes/page.php?id=116820

[Mike Mitchell]

Well done Dingo!  Plus one.

[JugNut]

Congrats on your prime finding avalanche Dingo.    With that kind of luck your karma must be over flowing, so here's a top up. +1 Karma 

[Dingo]

Looks like Tin Man just missed out on finding a big prime Number.  Better luck on the next one.  http://www.primegrid.com/download/SR5-59912.pdf

[owner]

Aw shucks.    Thanks Dingo. So near yet so far!

[Dingo]

I missed this when it happened, but congratulations to Tin Man for confirming a New SR5 Mega Prime in January. 

New SR5 Mega Prime Found!

On 17 January 2014, 6:53:10 UTC, PrimeGrid's Sierpinski/Riesel Base 5 Problem project eliminated k=59912 by finding the mega prime:

59912*5^1500861+1

The prime is 1,049,062 digits long and enters Chris Caldwell's The Largest Known Primes Database ranked 66th overall. This is the largest known base 5 mega prime. 40 k's now remain in the Sierpinski Base 5 Problem.

The discovery was made by Raymond Ottusch (RaymondFO*) of the United States using an Intel(R) Core(TM) i7-2600K CPU @ 3.40GHz with 24 GB RAM running Linux. This computer took about 3 hours and 41 minutes to complete the primality test using LLR. Raymond is a member of the Sicituradastra team.

The prime was verified on 17 January 2014 20:33:24 UTC, by Michael Wild (Tin Man) of the United Kingdom using an Intel(R) Core(TM) i5-2400 CPU @ 3.10GHz with 4 GB RAM running Darwin. This computer took about 2 hours and 50 minute to complete the primality test using LLR. Michael is a member of the BOINC@AUSTRALIA team.

 

[Mike Mitchell]

Well done Dingo!  Plus one.