Open
Show sequence-development graph
| n | Status | Digits | Term | Factorization |
|---|---|---|---|---|
| 0 | Fully factored | 3 | 134 | 2×67 |
| 1 | Fully factored | 3 | 309 | 3×103 |
| 2 | Fully factored | 3 | 466 | 2×233 |
| 3 | Fully factored | 4 | 2895 | 3×5×193 |
| 4 | Fully factored | 5 | 50771 | 7×7253 |
| 5 | Fully factored | 6 | 109740 | 22×3×5×31×59 |
| 6 | Fully factored | 8 | 43077632 | 212×13×809 |
| 7 | Fully factored | 8 | 40925066 | 2×7×13×224863 |
| 8 | Fully factored | 10 | 6239662705<10> | 5×43×53×59×9281 |
| 9 | Fully factored | 12 | 138999320721<12> | 32×23×671494303 |
| 10 | Fully factored | 14 | 1004081276…81<14> | 32×15391×72486899 |
| 11 | Fully factored | 16 | 1211594195…55<16> | 5×2423188390…91<15> |
| 12 | Fully factored | 16 | 2141068006…96<16> | 22×179×439×31687×214967 |
| 13 | Fully factored | 20 | 1219882921…46<20> | 2×251×2430045659…73<17> |
| 14 | Fully factored | 21 | 1338758635…66<21> | 2×17×37×64546133×1648737119<10> |
| 15 | Fully factored | 23 | 1585905816…18<23> | 2×1193×31219×4388173×48518149 |
| 16 | Composite | 25 | 2593581640…86<25> | 2×1296790820…93<25> |
| ↳ | Open Open - the last known term is composite and not yet fully factored. | |||
Open end - submit a factor of the remaining composite
(25 digits) of term #16:
1296790820458131862555493
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 '134' --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":"134"},"type":96,"part":"last20","fr":0}}'