Open
Show sequence-development graph
| n | Status | Digits | Term | Factorization |
|---|---|---|---|---|
| 0 | Fully factored | 4 | 1507 | 11×137 |
| 1 | Fully factored | 4 | 4532 | 22×11×103 |
| 2 | Fully factored | 7 | 3713558 | 2×612×499 |
| 3 | Fully factored | 11 | 19530755279<11> | 7×23×121309039 |
| 4 | Fully factored | 12 | 132105544237<12> | 43×367×1321×6337 |
| 5 | Fully factored | 15 | 2700746401…96<15> | 22×571×118246339819<12> |
| 6 | Fully factored | 18 | 1402308175…86<18> | 2×7011540878…93<17> |
| 7 | Fully factored | 19 | 2313808489…71<19> | 13×1779852684…67<18> |
| 8 | Fully factored | 19 | 5873513858…24<19> | 29×7×31×5286500808…81<14> |
| 9 | Fully factored | 31 | 2671908869…89<31> | 59×743×1669933×3649906752…09<20> |
| 10 | Fully factored | 34 | 1693975902…56<34> | 22×13×79×101159×1818347×2241792961…09<19> |
| 11 | Fully factored | 40 | 4071839580…87<40> | 7×5816913686…41<39> |
| 12 | Fully factored | 41 | 1919581516…60<41> | 22×5×4051×457698841×5176479613…43<27> |
| 13 | Fully factored | 45 | 8633796071…52<45> | 27×6745153180…59<43> |
| 14 | Composite | 54 | 2874679262…29<54> | 353630987×8129036673…67<45> |
| ↳ | Open Open - the last known term is composite and not yet fully factored. | |||
Open end - submit a factor of the remaining composite
(45 digits) of term #14:
812903667320039052545534084802372901731364267
Check for factors - let the server run a small P-1 / P+1 / ECM step on the composite:
From the command linefdb · curl
fdb
fdb seq view '1507' --type 83 --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":"1507"},"type":83,"part":"last20","fr":0}}'