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Old 2021-04-25, 05:23   #34
VBCurtis
 
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"Curtis"
Feb 2005
Riverside, CA

33·5·37 Posts
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I made up some parameters and ran this C103 as a quartic SNFS job on CADO. Took a 2-hyperthreaded instance about 6 minutes to solve on a 12-core machine with 18 other threads busy.
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Old 2021-04-25, 06:52   #35
Branger
 
Oct 2018

22·7 Posts
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And six more base-2 brilliant number, one of which took much longer than expected to find..

Code:
2^353-4203
=
125269909676882800262400105725282077739582106921689791
*
146467647140855997175976549181141923664201888942622379

2^353+20321
=
107212617965684231006696661224016764909923510204087201
*
171136469531909496395965898436670289930931414420683713

2^355-6237
=
201078246063474095502015538594857010445540999246436799
*
364992022501105116452215910637465538969268898994717469

2^355+11609
=
212926542994048279183611705107994489885983607534577991
*
344682042359245646786699688221203535450205665111934047

2^357-84009
=
453147361357734286103874959805167254938456672363539113
*
647841845458687143039115572227866832044273303789018751

2^357+293447
=
470652756196708146570444118328602847134424064755521003
*
623746103643411393320202884671105782953351092003850773
None of these were in the factordb before at least, so they may be new.
Attached Files
File Type: txt 2_353_plus_and_minus_factored.txt (55.6 KB, 54 views)
File Type: txt 2_355_plus_and_minus_factored.txt (39.6 KB, 58 views)
File Type: txt 2_357_minus_factored.txt (190.3 KB, 52 views)
File Type: txt 2_357_plus_factored.txt (690.3 KB, 53 views)
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Old 2021-05-05, 18:29   #36
swishzzz
 
Jan 2012
Toronto, Canada

5·19 Posts
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Quote:
Originally Posted by swishzzz View Post
Test run of Amazon EC2 free tier. A 103 digit snfs job with factmsieve.py takes around 2.5 hours on a single t2 micro Windows instance running at 10% CPU capacity, perhaps this will be faster on a Linux instance with CADO.

Code:
2^339 + 15885

Sat Apr 24 15:56:40 2021  p51 factor: 887592350957138861091733941658539740396245192826267
Sat Apr 24 15:56:40 2021  p52 factor: 1261696734859514200896533536322632897894845904544119
2^339 ± c completed:

Code:
2^339 - 27235 =
967306904908920452789078319450002924493095732788319 *
1157721882688666313356029082874219101278312435085187
Attached Files
File Type: txt 339b_brilliant.txt (23.0 KB, 50 views)
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Old 2021-08-24, 12:45   #37
Branger
 
Oct 2018

22·7 Posts
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Four more base-2 brilliant numbers:

Code:
2^359-123577
=
818923988648227215894707705730371540540812518512510431
*
1433919762596343433061717035212209825301021813200029081

2^359+14621
=
1005099120748900459161798514928920510471822535126047147
*
1168313917648207456964919118126527398761685430631874647

2^361-6273
=
1560537277762292011030721646497096890825992876952316309
*
3009915387784249643267311161037214234010646089476820931

2^361+44571
=
1588267509671791256308972554753220446511580018944216381
*
2957364006343175263301783757664193291901358679995452983
Proof files are attached.
Attached Files
File Type: txt 2_359_minus_factored.txt (285.8 KB, 24 views)
File Type: txt 2_359_plus_factored.txt (33.1 KB, 24 views)
File Type: txt 2_361_minus_factored.txt (14.3 KB, 22 views)
File Type: txt 2_361_plus_factored.txt (101.3 KB, 23 views)
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