The convenient comments box has been abused by spammers
so I removed it.
So, no, 31 has not been overlooked.
Many years ago I had asked "Has 31 been overlooked?". On March 6, 2009 Steve Homewood replied with his newly discovered formula "So, no, 31 has not been overlooked." It was a real surprise. I had expected the solution to the Alhpa31 problem to take longer to be solved. My 2004 prediction (guess?) stated that the discovery would happen by 2014 so my expectation was that the discovery would happen in late 2013. What a pleasant surprise to all that follow the progress of my proof of the existence of God.
Steve Homewood of Harlow in the United Kingdom made this ingenious discovery. His success is awe inspiring. I do not know how many more mathematicians attempted to solve the A31 problem but I suspect a few including a feeble and failed attempt on my part. It is an accomplishment that Leonhard Euler and Stanislaw Ulam would have been proud of.
Homewood not only discovered that 31 in a simple polynomial can be used to generate prime numbers at a high success rate but found the missing link in the proof of the existence of God. From the early days of drafting Document A there was the 41 and 59 that fit but the 31 that should fit but had no formula that worked. I made a bold prediction and hoped some one would take up the challenge and find the productive prime number generator formula using the number 31.
Euler's formula 41 + n^2 + n generates primes 47.5 percent of the time. Ulam's formula 59 + 4 n^2 + 4n is productive at the rate of 43.7 percent. Homewood's formula 31 + 2n^2 + 4n is 43.5% correct for answers up to ten million. The formulae are added to the oddities list because they are simple, elegant and highly productive.
How important is solving the A31 problem? Well, I would say it is extremely important. All theories must have predictions. When the prediction comes true it helps confirm the thesis or theory. In this case 31 accomplished that. Now right at the start of pi (3.14159...) there are three numbers that can be used to generate prime numbers: 31, 41 and 59. These three numbers when combined 314159 become a prime number and even more odd the reverse 951413 is also a prime. There are more oddities in detailed here.
Even without Document A and the Proof of the Existence of God a simple polynomial prime number generator formula that is successful 43.5% is in itself important to the branch of mathematics called Number Theory and in it a sub-branch prime number "madness". I hope that his discovery will be met with as great enthusiasm he deserves and has received from me.
Steve Homewood [mailto:firstname.lastname@example.org]
I thought you and your readers would be interested to know that there is a formula for 31, just like 41 and 59. It is 31 + 2n squared + 4n. It gives a result of primes 43.5% of the time for all answers up to 10,000,000. So, no, 31 has not been overlooked.
I really appreciate you taking the time to write to me. Did you come up with this formula or is it a published one? Are there other numbers besides 31, 41 and 59 using a simple or similar method that generate prime numbers?
2. When or if Alpha31 is confirmed it will strengthen the proposition. 31 must yield 39.9% or better to be considered as a valid candidate which can generate primes.
and K. A31 at
So 43.5% qualities.
I had predicted in 2004 that Alpha31 will be discovered by 2014. So thanks to you my prediction came in early.
I would like to hear more from you if you have the time. I will publish out dialog on my site. If you like I can add your website or blog or other link directed to you.
After reading your website I put all my effort into finding the missing formula for 31. After finding it I checked the Internet to see if anyone else had already discovered it but no one has as far as I can tell. I will try and get back to you when I can and thank you for your website which sparked off my own interest,
I had scoured the web for 31 but also had no luck finding it used to generate primes.
I am very grateful for your time and effort to finding the missing formula for 31.
So I am pleased that 31 + 2n squared + 4n generates primes 43.5% of the time above the
39.9% minimum threshold I had specified.
What do you make that the formulas look similar especially 31 and 59?
31 + 2n squared + 4n
41 + n squared + n
59 + 4n squared + 4n
Shortly I will be revising the relevant pages to reflect your discovery.
Please tell me about what is your own interest that was sparked. You have
aroused my curiosity.
I had noticed that 31 and 59 both contained the '+ 4n' part of the equation and maybe this is what is needed to generate 40% primes in other formulas. More research needs to be done to confirm this of course. I have always had an interest in prime numbers but finding your site and linking it to pi was what sparked my interest for the search of the missing formula for 31, which proved to exist.
Text related to A31 as it appeared just prior to March 6, 2009
I edited the text on several pages on this site to reflect Steve Homewood's discovery of the 31 prime number generator for easier reading. The five text boxes below are copied here to document how it appeared prior to the discovery and the editing.
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