Open
Show sequence-development graph
| n | Status | Digits | Term | Factorization |
|---|---|---|---|---|
| 0 | Fully factored | 3 | 121 | 112 |
| 1 | Fully factored | 3 | 123 | 3×41 |
| 2 | Fully factored | 3 | 404 | 22×101 |
| 3 | Fully factored | 4 | 3005 | 5×601 |
| 4 | Fully factored | 4 | 7256 | 23×907 |
| 5 | Fully factored | 5 | 34182 | 2×34×211 |
| 6 | Fully factored | 6 | 371560 | 23×5×7×1327 |
| 7 | Fully factored | 7 | 4110124 | 22×17×60443 |
| 8 | Fully factored | 9 | 470490414 | 2×3×257×463×659 |
| 9 | Fully factored | 11 | 59404600364<11> | 22×113×131426107 |
| 10 | Fully factored | 12 | 646852170084<12> | 22×3×17×1223×2592677 |
| 11 | Fully factored | 15 | 8384251482…34<15> | 2×103×3119×1304913431<10> |
| 12 | Fully factored | 17 | 1191769143…55<17> | 3×5×1752563×453343339 |
| 13 | Fully factored | 18 | 1628678827…10<18> | 2×3×5×103×631×83530986809<11> |
| 14 | Fully factored | 20 | 1290521870…53<20> | 3×101×1123×3792651904…37<14> |
| 15 | Fully factored | 21 | 2349539182…24<21> | 22×3×13×1506114860…79<19> |
| 16 | Fully factored | 24 | 1796980336…99<24> | 33×6655482729…37<22> |
| 17 | Composite | 24 | 2730644807…33<24> | 2730644807…33<24> |
| ↳ | Open Open - the last known term is composite and not yet fully factored. | |||
Open end - submit a factor of the remaining composite
(24 digits) of term #17:
273064480722439291909033
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 '121' --type 96 --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":"121"},"type":96,"part":"last20","fr":0}}'