Open
Show sequence-development graph
| n | Status | Digits | Term | Factorization |
|---|---|---|---|---|
| 0 | Fully factored | 5 | 85543 | 131×653 |
| 1 | Fully factored | 6 | 441559 | 109×4051 |
| 2 | Fully factored | 7 | 2738585 | 5×83×6599 |
| 3 | Fully factored | 9 | 115986187 | 139×834433 |
| 4 | Fully factored | 9 | 564076847 | 172×1951823 |
| 5 | Fully factored | 10 | 1319432807<10> | 7×11×29×179×3301 |
| 6 | Fully factored | 13 | 1019812795…77<13> | 11×239×387909013 |
| 7 | Fully factored | 13 | 6817888818…13<13> | 72×211×659434067 |
| 8 | Fully factored | 15 | 3013455423…17<15> | 3×72×792073×2588107 |
| 9 | Fully factored | 18 | 5404668015…97<18> | 3×198221×908862333019<12> |
| 10 | Fully factored | 20 | 1079853511…93<20> | 33×101×3959858859…59<16> |
| 11 | Fully factored | 23 | 4704857202…69<23> | 2131×2207816612…99<20> |
| 12 | Fully factored | 24 | 3880458478…55<24> | 5×7×197×555871×4349861×23275519 |
| 13 | Fully factored | 28 | 1501503165…35<28> | 32×5×19×1756144053…77<25> |
| 14 | Fully factored | 30 | 8025156848…57<30> | 3×269×3833×2594425327…47<24> |
| 15 | Composite | 32 | 8014589131…77<32> | 137×5850065059…21<30> |
| ↳ | Open Open - the last known term is composite and not yet fully factored. | |||
Open end - submit a factor of the remaining composite
(30 digits) of term #15:
585006505962063920835900276821
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 '85543' --type 76 --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":"85543"},"type":76,"part":"last20","fr":0}}'