cochet asked me via PM the status of 37166009 and 37197833. (first one already done LL - composite, second one's LL still running...he posted these earlier in this thread, but apparently never got a response on them)
18 exponents, and none prime yet...

Perhaps if we take his formula, apply it to the pool of candidate exponents, and remove the ones he claims are prime, we can then test the ones that are really prime.

Think of how much time we will save!

:smile:

come back
 

In the bracket I propose : 37020163-37271995 (and no 37201995 as I wrote in the precipitation), I cannot eliminate these two new values :
37224353
37238353

I know it will be twenty propositions for the beginning, and that fact can made nervous seriously. But the etimology of "serious" concerns precisely the "série", it's to say what is our interest with numbers. So, working on series is something of very serious.
Thanks for commentaries about these two propositions. Am I wrong once again ?
Alain

[quote=cochet;109363]In the bracket I propose : 37020163-37271995 (and no 37201995 as I wrote in the precipitation), I cannot eliminate these two new values :
37224353
37238353

I know it will be twenty propositions for the beginning, and that fact can made nervous seriously. But the etimology of "serious" concerns precisely the "série", it's to say what is our interest with numbers. So, working on series is something of very serious.
Thanks for commentaries about these two propositions. Am I wrong once again ?
Alain[/quote]
First is being tested. Second has already been tested.

What happens with your method if, using the known 43 first Mersenne primes, you try to find M44 ? How many tries do you need before finding the good exponent ?
T.

More than for M44 to M45, because the bracket is bigger.

In the case not very probable where m45 is included in the interval 37384201-37548845, then only two candidates are to consider : 37425161 and 37446833.
But there is all chances it will be in the bracket I have proposed before.
Alain

[quote=cochet;109697]In the case not very probable where m45 is included in the interval 37384201-37548845, then only two candidates are to consider : 37425161 and 37446833.
But there is all chances it will be in the bracket I have proposed before.
Alain[/quote]
I think the first one has been factored to 67 bits and is awaiting assignment. The second one has already been tested.

what about [B][SIZE=4]37197833[/SIZE][/B] ,I have already proposed?
Was it LLtested during the hollidays ?
Thanks
Alain

[quote=cochet;113214]what about [B][SIZE=4]37197833[/SIZE][/B] ,I have already proposed?
Was it LLtested during the hollidays ?
Thanks
Alain[/quote]
Yes, it's already been finished.

OK. In this case, the bracket the most probable is for me : 37020163-37026625. It's of course an interval included into the precedent (37020163-37271995).
It is surprising that nobody has, at my knowledge, put the finger on these intervals. "C'est pourtant évident !", as we say in French.
The problem is now to must test hundreds of numbers into the bracket, and I have not the possibility of do that.
Alain