Open
Show sequence-development graph
| n | Status | Digits | Term | Factorization |
|---|---|---|---|---|
| 0 | Fully factored | 2 | 51 | 3×17 |
| 1 | Fully factored | 3 | 110 | 2×5×11 |
| 2 | Fully factored | 4 | 2088 | 23×32×29 |
| 3 | Fully factored | 7 | 1939389 | 3×59×10957 |
| 4 | Fully factored | 8 | 87656079 | 3×7×1223×3413 |
| 5 | Fully factored | 11 | 88786805906<11> | 2×44393402953<11> |
| 6 | Fully factored | 13 | 1750175477…35<13> | 3×5×24593×4744373 |
| 7 | Fully factored | 14 | 8428740312…34<14> | 2×3×72×13729×20882209 |
| 8 | Fully factored | 17 | 5346301486…32<17> | 22×13×17×19×863×4973×741683 |
| 9 | Fully factored | 20 | 5075518814…82<20> | 2×631×4021805716…11<17> |
| 10 | Fully factored | 22 | 2010943305…44<22> | 23×112×151×397×1759×114769×171659 |
| 11 | Composite | 28 | 1473809872…83<28> | 3×4912699574…61<27> |
| ↳ | Open Open - the last known term is composite and not yet fully factored. | |||
Open end - submit a factor of the remaining composite
(27 digits) of term #11:
491269957440645872429707861
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 '51' --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":"51"},"type":116,"part":"last20","fr":0}}'