Open
Show sequence-development graph
| n | Status | Digits | Term | Factorization |
|---|---|---|---|---|
| 0 | Fully factored | 4 | 3563 | 7×509 |
| 1 | Fully factored | 4 | 7236 | 22×33×67 |
| 2 | Fully factored | 8 | 59197667 | 5581×10607 |
| 3 | Fully factored | 9 | 166274178 | 2×3×7×17×232877 |
| 4 | Fully factored | 11 | 57904076056<11> | 23×32029×225983 |
| 5 | Fully factored | 14 | 5546749711…57<14> | 181×353×421×2062069 |
| 6 | Fully factored | 16 | 4795295618…74<16> | 2×2397647809…37<16> |
| 7 | Fully factored | 17 | 5321460160…99<17> | 3×112×929×157800536737<12> |
| 8 | Fully factored | 19 | 2644913347…52<19> | 22×6612283368…63<18> |
| 9 | Fully factored | 20 | 5107164649…67<20> | 7×23×97×3270259748…51<16> |
| 10 | Fully factored | 22 | 5862679003…98<22> | 2×73×8573×123731×8056764211<10> |
| 11 | Fully factored | 25 | 1621591739…97<25> | 7×7177×3227754811…23<20> |
| 12 | Fully factored | 27 | 1632834363…17<27> | 7×40262449×5793538586…19<18> |
| 13 | Composite | 28 | 4925088573…95<28> | 3×5×130807×2510104491…59<22> |
| ↳ | Open Open - the last known term is composite and not yet fully factored. | |||
Open end - submit a factor of the remaining composite
(22 digits) of term #13:
2510104491469189283959
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 '3563' --type 116 --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":"3563"},"type":116,"part":"last20","fr":0}}'