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Old 2010-11-14, 04:00   #67
3.14159
 
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Now, back to the main focus of the thread..

Some obscure theory on primes of the form 2p-1.

What about them?

Want to find one? P95 is your friend. Why don't you try 264354649 - 1?

By the way; What is the status of 264354649 - 1? (A number of about 19.37 million digits.) If it's uncharted territory, perhaps sm88 can pursue actually looking for one, as opposed to the usual business of seeing patterns where none exist, and babbling nonsense no one understands.

Try these values for p, for 2p-1, if that one is composite. These are all probably uncharted territory anyway, and I'm a tad too lazy to go looking around for each exponent's status, although I'm sure that at least one has already been meddled with at least once.

Code:
60687901
38938813
45615587
60254287
73008427
80300791
62029711
50742259
78463417
86100557
70978823
30219743
42805117
97802563
54000169
45921541
67627421
50714737
39618451
49718023
80976547
71843129
82795997
37144193
32807759
52988981
85507519
81177307
29024783
94450157
49717169
84537977
52294097
53169451
70975439
62525147

Last fiddled with by 3.14159 on 2010-11-14 at 04:16
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Old 2010-11-14, 13:31   #68
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Quote:
Originally Posted by 3.14159 View Post
Now, back to the main focus of the thread..

Some obscure theory on primes of the form 2p-1.

What about them?

Want to find one? P95 is your friend. Why don't you try 264354649 - 1?

By the way; What is the status of 264354649 - 1? (A number of about 19.37 million digits.) If it's uncharted territory, perhaps sm88 can pursue actually looking for one, as opposed to the usual business of seeing patterns where none exist, and babbling nonsense no one understands.

Try these values for p, for 2p-1, if that one is composite. These are all probably uncharted territory anyway, and I'm a tad too lazy to go looking around for each exponent's status, although I'm sure that at least one has already been meddled with at least once.

Code:
60687901
38938813
45615587
60254287
73008427
80300791
62029711
50742259
78463417
86100557
70978823
30219743
42805117
97802563
54000169
45921541
67627421
50714737
39618451
49718023
80976547
71843129
82795997
37144193
32807759
52988981
85507519
81177307
29024783
94450157
49717169
84537977
52294097
53169451
70975439
62525147
get me the worlds fastest computer and I'll care if i can't get pari to print the biggest prime known in under 30 minutes then I'm not worth it to help anyone find one. so unless I retest and get faster than I did before by 25% I'm not worth it to be searching for them. apparently that was checking if it was prime because it took 31 ms to calculate this time.

Last fiddled with by science_man_88 on 2010-11-14 at 13:39
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Old 2010-11-14, 15:11   #69
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my computer isn't worth breaking to be in the record books, plain and simple
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Old 2010-11-14, 15:20   #70
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Quote:
Originally Posted by science_man_88 View Post
my computer isn't worth breaking to be in the record books, plain and simple
P95 is your friend..

A random c160, completely factored: 1613 * 16685818316410231 * 15694342916407420598282061127 * 21443356185490234674701067126317 * 11753380988799343801639257420578787695318692321305544085583187497380249619645889.

Last fiddled with by 3.14159 on 2010-11-14 at 15:25
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Old 2010-11-14, 15:20   #71
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Quote:
Originally Posted by 3.14159 View Post
.. P95 is your friend..
all that means to me is a prime of 95 digits.
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Old 2010-11-14, 15:37   #72
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Quote:
Originally Posted by science_man_88 View Post
all that means to me is a prime of 95 digits.
Hey, look! P95!

And, an actual p95;

82449289611552559574990925283007152491333479550118068579078519555198400142339056437465979206437.

Last fiddled with by 3.14159 on 2010-11-14 at 15:45
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Old 2010-11-14, 15:44   #73
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Quote:
Originally Posted by 3.14159 View Post
that helps me none
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Old 2010-11-14, 16:19   #74
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Quote:
Originally Posted by science_man_88 View Post
that helps me none
Prime95 is (Mersenne prime)-testing software. Pi is apparently suggesting that, rather than think about the problem, you apply some cycles to it.

Last fiddled with by CRGreathouse on 2010-11-14 at 16:19
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Old 2010-11-14, 16:21   #75
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Quote:
Originally Posted by CRGreathouse View Post
Prime95 is (Mersenne prime)-testing software. Pi is apparently suggesting that, rather than think about the problem, you apply some cycles to it.
I have before and it would take me over 50 days to test one exponent pointless to me.

that and it teaches me nothing about them.

Last fiddled with by science_man_88 on 2010-11-14 at 16:22
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Old 2010-11-14, 16:42   #76
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Quote:
Originally Posted by science_man_88 View Post
I have before and it would take me over 50 days to test one exponent pointless to me.

that and it teaches me nothing about them.
I don't see why 50 days/test makes it bad. But I agree that it doesn't teach you anything.
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Old 2010-11-14, 17:12   #77
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Quote:
Originally Posted by CRGreathouse View Post
Prime95 is (Mersenne prime)-testing software. Pi is apparently suggesting that, rather than think about the problem, you apply some cycles to it.
Think about what problem?

No one's even made it clear what the supposed "problem" is, besides looking for some Mersenne number.

It's really simple; P95 is your friend.
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