Silliness The next prime number

Bikeridr · 09-05-2011, 03:43 PM

Post here the next-in-line prime number.

Rule is simple:
1.) One prime per post.
2.) Preferrably no two posts in a row (by the same person).
3.) The prime has to be correct and in sequence.

To get a little head start we will begin with the 9.593rd prime which is the first one after 100.000. The number is:
100.003

Let's see how far we can reach. I've made a small C++ program that calculated some 203.000.000 primes which was up in the 4.000.000.000-and-something. (I'll reveal it when we reach that number)

TGS · 09-05-2011, 04:31 PM

100,019 I think.

tilia · 09-05-2011, 04:37 PM

100,043

Bikeridr · 09-05-2011, 05:04 PM

100.049

Solitaire1 · 09-06-2011, 05:28 AM

I think the next number in sequence is: 100,061

pdurrant · 09-06-2011, 05:53 AM

Quote:

Originally Posted by Solitaire1

I think the next number in sequence is: 100,061

You missed out 100,057. And I'm sorry, but 100,061 is divisible by 13, 43 and 179.

Bikeridr · 09-06-2011, 06:19 AM

Indeed. Minus one point to Soltaire1.
Next: 100.069

pdurrant · 09-06-2011, 06:26 AM

100,103

Bilbo1967 · 09-06-2011, 06:38 AM

Quote:

Originally Posted by pdurrant

101,103

Did you mean 100,103?

Next one is 100,109

pdurrant · 09-06-2011, 06:55 AM

Quote:

Originally Posted by Bilbo1967

Did you mean 100,103?

Next one is 100,109

Yes, indeed I did. A typo, now fixed - thanks.

100,129 is next.

Bikeridr · 09-06-2011, 07:09 AM

100.151
(Hint: Next is close)

pdurrant · 09-06-2011, 07:16 AM

100,153 — our first prime pair.

Bikeridr · 09-06-2011, 10:03 AM

Well, there are quite a few before, being 2 and 3 the only *true* pair. Anyway, the first pair over 100.000. So, when do we hit the next?

100.169

pdurrant · 09-06-2011, 10:20 AM

100,183

A while yet, I think, to the next pair.

Bilbo1967 · 09-07-2011, 07:59 AM

100,189

09-05-2011, 03:43 PM	#1
Bikeridr Information Acquirer Posts: 436 Karma: 4265156 Join Date: Sep 2010 Location: Latvia, Rigas Rajons Device: Kindle 3 International, Pocketbook Color	The next prime number Post here the next-in-line prime number. Rule is simple: 1.) One prime per post. 2.) Preferrably no two posts in a row (by the same person). 3.) The prime has to be correct and in sequence. To get a little head start we will begin with the 9.593rd prime which is the first one after 100.000. The number is: 100.003 Let's see how far we can reach. I've made a small C++ program that calculated some 203.000.000 primes which was up in the 4.000.000.000-and-something. (I'll reveal it when we reach that number)

09-06-2011, 06:26 AM	#8
pdurrant The Grand Mouse 高貴的老鼠 Posts: 71,507 Karma: 306214458 Join Date: Jul 2007 Location: Norfolk, England Device: Kindle Voyage	100,103 Last edited by pdurrant; 09-06-2011 at 06:54 AM.

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09-05-2011, 04:31 PM	#2
TGS Country Member Posts: 9,058 Karma: 7676767 Join Date: Feb 2010 Location: Denmark Device: Liseuse: Irex DR800. PRS 505 in the house, and the missus has an iPad.	100,019 I think.

09-05-2011, 04:37 PM	#3
tilia Evangelist Posts: 432 Karma: 1720909 Join Date: Mar 2011 Device: Voyage, K3	100,043

09-05-2011, 05:04 PM	#4
Bikeridr Information Acquirer Posts: 436 Karma: 4265156 Join Date: Sep 2010 Location: Latvia, Rigas Rajons Device: Kindle 3 International, Pocketbook Color	100.049

09-06-2011, 05:28 AM	#5
Solitaire1 Samurai Lizard Posts: 14,251 Karma: 66666666 Join Date: Nov 2009 Device: NookColor	I think the next number in sequence is: 100,061

09-06-2011, 06:19 AM	#7
Bikeridr Information Acquirer Posts: 436 Karma: 4265156 Join Date: Sep 2010 Location: Latvia, Rigas Rajons Device: Kindle 3 International, Pocketbook Color	Indeed. Minus one point to Soltaire1. Next: 100.069

09-06-2011, 07:09 AM	#11
Bikeridr Information Acquirer Posts: 436 Karma: 4265156 Join Date: Sep 2010 Location: Latvia, Rigas Rajons Device: Kindle 3 International, Pocketbook Color	100.151 (Hint: Next is close)

09-06-2011, 07:16 AM	#12
pdurrant The Grand Mouse 高貴的老鼠 Posts: 71,507 Karma: 306214458 Join Date: Jul 2007 Location: Norfolk, England Device: Kindle Voyage	100,153 — our first prime pair.

09-06-2011, 10:03 AM	#13
Bikeridr Information Acquirer Posts: 436 Karma: 4265156 Join Date: Sep 2010 Location: Latvia, Rigas Rajons Device: Kindle 3 International, Pocketbook Color	Well, there are quite a few before, being 2 and 3 the only true pair. Anyway, the first pair over 100.000. So, when do we hit the next? 100.169

09-06-2011, 10:20 AM	#14
pdurrant The Grand Mouse 高貴的老鼠 Posts: 71,507 Karma: 306214458 Join Date: Jul 2007 Location: Norfolk, England Device: Kindle Voyage	100,183 A while yet, I think, to the next pair.

09-07-2011, 07:59 AM	#15
Bilbo1967 Not scared! Posts: 13,424 Karma: 81011643 Join Date: Mar 2009 Location: Midlands, UK Device: Kindle Paperwhite 10, Huawei M5 10	100,189

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