factordbrpc · fdb
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Inverse home prime · Base 9 of 87735 length 19 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
0 Fully factored 5 87735 3×5×5849
1 Fully factored 6 473817 3×43×3673
2 Fully factored 7 2678007 3×223×4003
3 Fully factored 8 26265693 3×8755231
4 Fully factored 8 78797082 2×3×7×13×277×521
5 Fully factored 11 22443708287<11> 72×11×13×3203041
6 Fully factored 13 1702227398…35<13> 5×340445479667<12>
7 Fully factored 13 3064009317…08<13> 24×37799×5066287
8 Fully factored 16 1962783634…22<16> 2×2153×455825275187<12>
9 Fully factored 17 2691602667…42<17> 2×4397×3060726253…43<13>
10 Fully factored 18 1807328245…82<18> 2×11×8215128388…31<16>
11 Fully factored 19 5988828595…00<19> 22×53×262051×45707351587<11>
12 Fully factored 22 1434345124…57<22> 29×4946017671…33<20>
13 Fully factored 22 4006274313…02<22> 2×19×1019×1034624842…41<18>
14 Fully factored 24 4948578546…53<24> 103×55736298523<11>×86199574037<11>
15 Fully factored 26 1774772788…83<26> 13×43×691×68633×6694527399…79<15>
16 Fully factored 28 1701659043…15<28> 5×7×312043969×1558076253…41<18>
17 Fully factored 28 4889408378…26<28> 2×4019×208283×2920481679…69<19>
18 Composite 29 9164780965…61<29> 44129×2076815918…09<25>
↳ Open Open - the last known term is composite and not yet fully factored.
Open end - submit a factor of the remaining composite (25 digits) of term #18:
2076815918241562145161609
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 '87735' --type 19 --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":"87735"},"type":19,"part":"last20","fr":0}}'