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New kind of Workunit
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Author | Message |
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Chechevatov Send message Joined: 16 Oct 16 Posts: 7 Credit: 69,634,140 RAC: 25,447 |
Good day to you! I recieved some workunits in new format. For example yafu_C93_F1494953692_41_0. Is it a part of aliquot sequences? What numbers are factored in such workunits? Thanks. |
yoyo_rkn Volunteer moderator Project administrator Project developer Project tester Volunteer developer Volunteer tester Project scientist Send message Joined: 22 Aug 11 Posts: 736 Credit: 17,612,101 RAC: 92 |
Hi, you are right the workunits which doesn't contain _ali_ in the name are different composites which needs to factored. They are taken from factordb. Here a statistic about them: http://factordb.com/stat_1.php I introduced them, because the Aliquot Sequence composites are big ond mainly available for the 8t and 16t application and user demand to get get work also for yafu and yafu-4t. yoyo |
Chechevatov Send message Joined: 16 Oct 16 Posts: 7 Credit: 69,634,140 RAC: 25,447 |
Thanks for your answer. What exact number is factored in new WU? Among composites of 93 digits I didn't find any beginning with 1494953692, and even beginning with 149495. C93 means Composite number contains 93 digits, right? What does it mean F1494953692? And the second question: Yafu-8t deals with composite numbers more than 130 digits long. There are about 1000 unreserved sequences with cofactor size smaller than 130 digits long. Do you choose new composite numbers from this list? Thanks. |
yoyo_rkn Volunteer moderator Project administrator Project developer Project tester Volunteer developer Volunteer tester Project scientist Send message Joined: 22 Aug 11 Posts: 736 Credit: 17,612,101 RAC: 92 |
Thanks for your answer. This is just the timestamp when this wu was created. The composite which is factored is in the wu.
No. The _ali_ wus workes on the sequences which are reserved to yafu@home. |
Chechevatov Send message Joined: 16 Oct 16 Posts: 7 Credit: 69,634,140 RAC: 25,447 |
It's a pity! I thought that unreserved sequences is a good choice for any composite numbers to factor. Especially for sequences that recent progress was in 2015 or earlier. There are nearly 200 such sequences with cofactor size less than 130 digits. You don't have to reserve these sequences. Just make one more step. Factoring 130 digit number takes near half a year on a modern computer. That's why I think that such factoring wouldn't interfere with someone. Thanks. |
yoyo_rkn Volunteer moderator Project administrator Project developer Project tester Volunteer developer Volunteer tester Project scientist Send message Joined: 22 Aug 11 Posts: 736 Credit: 17,612,101 RAC: 92 |
I haven't found an easy way to fetch those composites. |
Chechevatov Send message Joined: 16 Oct 16 Posts: 7 Credit: 69,634,140 RAC: 25,447 |
Can I do it manually? What format is good for you? Text file with one composite number on each string or CSV file which contains sequence first number, composite number to factor, may be some other parameters I can send it via email or publish it in a forum. Thanks in advance. |
yoyo_rkn Volunteer moderator Project administrator Project developer Project tester Volunteer developer Volunteer tester Project scientist Send message Joined: 22 Aug 11 Posts: 736 Credit: 17,612,101 RAC: 92 |
It would be sufficient just to get a list of sequences which have small cofactors. yoyo |