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Old 2020-06-20, 17:46   #12
paulunderwood
 
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Quote:
Originally Posted by Parlak67 View Post
Please document how you found the factor.
I don't what software forumite Runtime Error used, but it is easy to check:

Code:
Mod(2,41094328366458894751937)^156635789-1
Mod(0, 41094328366458894751937)

Last fiddled with by paulunderwood on 2020-06-20 at 17:48
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Old 2020-06-20, 17:48   #13
kriesel
 
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Quote:
Originally Posted by Parlak67 View Post
Please document how you found the factor.
You asked someone who did not find it, to document how he found it. After you made an extraordinary claim, with no documentation yet.
That seems ... odd.

Probably the factor finder used mfaktc or mfakto.

We do what we reasonably can to make such information available. Reference information blog
An Available software thread in the "New to GIMPS? Start Here" forum's Information and Answers subforum
And more, elsewhere.

Last fiddled with by kriesel on 2020-06-20 at 18:06
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Old 2020-06-20, 18:14   #14
Uncwilly
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Factors are absolute proof and the method of their discovery is basically irrelevant. They can be quickly verified to be true (a fraction of a second, IIRC). The PrimeNet server does that for all reported factors before they are entered into the database.

And you have yet to state how you "knew" it to be prime. If you used any of the programs that I mentioned above, there was an error. Fixing any error in the program that produces false prime claims is important to us.

Last fiddled with by Uncwilly on 2020-06-20 at 18:16
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Old 2020-06-20, 18:21   #15
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Quote:
Originally Posted by kriesel View Post
Well done. This might be a a new speed record for empirically dispatching a dubious claim.
https://www.alpertron.com.ar/ECM.HTM
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Old 2020-06-20, 18:28   #16
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Quote:
Originally Posted by Parlak67 View Post
That is a fine tool. But it is not capable of testing a Mersenne Prime of this size.

See the attached screen grab.
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Old 2020-06-20, 18:34   #17
Batalov
 
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We are looking at this from a wrong direction.
He simply found that 156635789 is prime. --

Quote:
Originally Posted by Parlak67 View Post
156635789 you can look with the program you want?
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Old 2020-06-20, 18:34   #18
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Quote:
Originally Posted by Uncwilly View Post
That is a fine tool. But it is not capable of testing a Mersenne Prime of this size.

See the attached screen grab.
thanks for everything. I will start working again
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Old 2020-06-20, 18:34   #19
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I apologize for my earlier comment about IP addresses. There have been a few dubious claims recently that seem to be troll posts. Sorry for assuming.

Quote:
Originally Posted by Parlak67 View Post
Please document how you found the factor.
Just to be clear, 156635789 is a prime number. If you wrote a program and found it on your own, good job! It just isn't very big compared to the size of today's known prime numbers.

However, the Mersenne number 2156635789-1 is not prime because it is divisible by 41094328366458894751937.

The software used: mfaktc version 0.21

Last fiddled with by Runtime Error on 2020-06-20 at 18:37
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Old 2020-06-20, 18:40   #20
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Quote:
Originally Posted by Runtime Error View Post
I apologize for my earlier comment about IP addresses. There have been a few dubious claims recently that seem to be troll posts. Sorry for assuming.



Just to be clear, 156635789 is a prime number. If you wrote a program and found it on your own, good job! It just isn't very big compared to the size of today's known prime numbers.

However, the Mersenne number 2156635789-1 is not prime because it is divisible by 41094328366458894751937.

The software used: mfaktc version 0.21
numbers

155654789
160456789
369452123
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Old 2020-06-20, 18:40   #21
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Quote:
Originally Posted by Runtime Error View Post
... 2156635789-1 is not prime because it is divisible by 41094328366458894751937.

The software used: mfaktc version 0.21
This reminds me of the Mr.Show sketch, "24 is the highest number."


...but wait! Runtime Error just said 41094328366458894751937, that is an enormous number!
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Old 2020-06-20, 18:45   #22
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Quote:
Originally Posted by Batalov View Post
This reminds me of the Mr.Show sketch, "24 is the highest number."


...but wait! Runtime Error just said 41094328366458894751937, that is an enormous number!

My goal is not to make fun of someone here. Thank you for everything.
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