mersenneforum.org Largest 10^147-c Brilliant Number (p74*p74)
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 2021-04-25, 05:23 #34 VBCurtis     "Curtis" Feb 2005 Riverside, CA 507310 Posts 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.
2021-04-25, 06:52   #35
Branger

Oct 2018

1E16 Posts

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
 2_353_plus_and_minus_factored.txt (55.6 KB, 72 views) 2_355_plus_and_minus_factored.txt (39.6 KB, 75 views) 2_357_minus_factored.txt (190.3 KB, 69 views) 2_357_plus_factored.txt (690.3 KB, 70 views)

2021-05-05, 18:29   #36
swishzzz

Jan 2012

5×19 Posts

Quote:
 Originally Posted by swishzzz 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
 339b_brilliant.txt (23.0 KB, 69 views)

2021-08-24, 12:45   #37
Branger

Oct 2018

368 Posts

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
 2_359_minus_factored.txt (285.8 KB, 42 views) 2_359_plus_factored.txt (33.1 KB, 43 views) 2_361_minus_factored.txt (14.3 KB, 40 views) 2_361_plus_factored.txt (101.3 KB, 41 views)

 2021-10-21, 17:07 #38 Branger   Oct 2018 2×3×5 Posts And another batch finished: Code: 2^363-291 = 4094013899900989030912375965276208433376145195035983021 * 4589222489607338458027850363512336418671632190977908977 2^363+163109 = 3594544799178917497808832006387639836453189974351828487 * 5226904020359514021042583817732061323376054356093003891 2^365-21055 = 6610188871706148247866877699982575091248185129696213497 * 11369321528836272916753163939935476417901514113750418441 2^365+25151 = 6975722917193176731536583299621002374191571619112667517 * 10773559033362830224264470417875672248024627915449550699 Proof files are attached.
2021-10-21, 18:55   #39
Branger

Oct 2018

3010 Posts

Quote:
 Originally Posted by Branger Proof files are attached.
Well, apparently not. Let's try that again.
Attached Files
 2_363_minus_factored.txt (676 Bytes, 16 views) 2_363_plus_factored.txt (379.1 KB, 18 views) 2_365_minus_factored.txt (47.8 KB, 16 views) 2_365_plus_factored.txt (56.8 KB, 16 views)

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