factordbrpc · fdb
Sign in
Show
Open
Conway climb · Base 3 of 27 length 39 Not fully computed yet - the last known term is composite. ↓ .elf file
Show sequence-development graph
Term size (digits) across the sequence
How the sequence develops - decimal digits of each term vs iteration.
nStatus DigitsTermFactorization
19 Fully factored 11 64088993524<11> 22×63839×250979
20 Fully factored 12 787072343594<12> 2×23×17110268339<11>
21 Fully factored 13 2433451858…32<13> 23×304181482279<12>
22 Fully factored 14 1809724228…82<14> 2×107×84566552713<11>
23 Fully factored 14 5591147159…24<14> 22×11×13×97747327967<11>
24 Fully factored 16 1734779960…69<16> 103×37181×452987383
25 Fully factored 16 7112143365…59<16> 11×59119×10936559951<11>
26 Fully factored 17 6300489403…75<17> 52×7×29×131×94769140799<11>
27 Fully factored 18 8914770646…97<18> 39866773×22361405189<11>
28 Fully factored 19 1251061602…46<19> 2×11×13×27851×127133×1235417
29 Fully factored 20 2949312339…99<20> 22153×1331337669…83<16>
30 Fully factored 20 4105128758…56<20> 22×131×599×1307882335…81<15>
31 Fully factored 21 3115698278…07<21> 11×11677×2425668390…81<16>
32 Fully factored 22 1268524456…51<22> 7993×1587044234…07<18>
33 Fully factored 22 3599277964…66<22> 2×811×2219036969…53<19>
34 Fully factored 23 2101471750…48<23> 22×5003×10939×9599650898…11<14>
35 Fully factored 24 2329877006…19<24> 7×37×13799×6519069582…59<17>
36 Fully factored 25 1786476095…10<25> 2×5×1786476095…61<24>
37 Fully factored 25 5682532181…70<25> 2×5×7×103×1277×10151×4013323×15149657
38 Composite 27 4618085679…43<27> 13×3552373599…11<26>
↳ Open Open - the last known term is composite and not yet fully factored.
Open end - submit a factor of the remaining composite (26 digits) of term #38:
35523735994430585933805311
Check for factors - let the server run a small P-1 / P+1 / ECM step on the composite:
level 0 done · takes up to a minute
From the command linefdb · curl
fdb
fdb seq view '27' --type 88 --part last20
curl
curl -s 'https://factordb.com:4059/rpc' -H 'Content-Type: application/json' -d '{"jsonrpc":"2.0","id":1,"method":"sequence_view","params":{"start":{"expr":"27"},"type":88,"part":"last20","fr":0}}'