Open
Show sequence-development graph
| n | Status | Digits | Term | Factorization |
|---|---|---|---|---|
| 0 | Fully factored | 5 | 43231 | 17×2543 |
| 1 | Fully factored | 5 | 83936 | 25×43×61 |
| 2 | Fully factored | 13 | 2601410289…58<13> | 2×17×76512067337<11> |
| 3 | Fully factored | 14 | 8332164133…56<14> | 22×2083041033…39<14> |
| 4 | Fully factored | 17 | 2268431685…39<17> | 3061×472741×15676139 |
| 5 | Fully factored | 18 | 6680926530…81<18> | 7×13×619×1186054524…89<14> |
| 6 | Fully factored | 20 | 1406566967…96<20> | 22×263×307×16057×2712326027<10> |
| 7 | Fully factored | 24 | 1258830771…86<24> | 2×31×2030372211…03<22> |
| 8 | Fully factored | 25 | 2211075338…92<25> | 24×7×151×911×13033×507497×21697631 |
| 9 | Composite | 32 | 4291759387…34<32> | 2×13×19×67×30500527×4251344227…29<20> |
| ↳ | Open Open - the last known term is composite and not yet fully factored. | |||
Open end - submit a factor of the remaining composite
(20 digits) of term #9:
42513442270615157929
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 '43231' --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":"43231"},"type":83,"part":"last20","fr":0}}'