Open
Show sequence-development graph
| n | Status | Digits | Term | Factorization |
|---|---|---|---|---|
| 0 | Fully factored | 4 | 2977 | 13×229 |
| 1 | Fully factored | 4 | 3448 | 23×431 |
| 2 | Fully factored | 7 | 1455107 | 101×14407 |
| 3 | Fully factored | 7 | 3241676 | 22×810419 |
| 4 | Fully factored | 9 | 182344307 | 7207×25301 |
| 5 | Fully factored | 10 | 1280870332<10> | 22×7×19×2407651 |
| 6 | Fully factored | 13 | 1828310043…57<13> | 11×2267×73317161 |
| 7 | Fully factored | 13 | 3711681309…41<13> | 379×9793354379<10> |
| 8 | Fully factored | 14 | 3305257102…04<14> | 212×13×211×2941843 |
| 9 | Fully factored | 25 | 1288215488…07<25> | 23×31×39514417×4572391491…67<14> |
| 10 | Fully factored | 27 | 3955007009…48<27> | 23×107×113×41375531×9882150620…11<14> |
| 11 | Fully factored | 31 | 2884888920…82<31> | 2×31×83×2887×13879×4424137×3162465432…17<13> |
| 12 | Fully factored | 34 | 4673781983…42<34> | 2×3845687663<10>×6076653115…67<24> |
| 13 | Fully factored | 36 | 3504104392…22<36> | 2×6833×39679×6462118254…23<27> |
| 14 | Fully factored | 38 | 2484255343…47<38> | 167423×1483819632…89<33> |
| 15 | Composite | 39 | 1126775533…98<39> | 2×5633877668…49<38> |
| ↳ | Open Open - the last known term is composite and not yet fully factored. | |||
Open end - submit a factor of the remaining composite
(38 digits) of term #15:
56338776683052268196391862676615282149
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 '2977' --type 65 --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":"2977"},"type":65,"part":"last20","fr":0}}'