Open
Show sequence-development graph
| n | Status | Digits | Term | Factorization |
|---|---|---|---|---|
| 0 | Fully factored | 3 | 434 | 2×7×31 |
| 1 | Fully factored | 5 | 24502 | 2×12251 |
| 2 | Fully factored | 6 | 343030 | 2×5×34303 |
| 3 | Fully factored | 8 | 26893694 | 2×17×790991 |
| 4 | Fully factored | 9 | 620137422 | 2×32×233×147863 |
| 5 | Fully factored | 13 | 2544781760…38<13> | 2×32×141376764491<12> |
| 6 | Fully factored | 16 | 3103502734…70<16> | 2×5×4373×70969648619<11> |
| 7 | Fully factored | 19 | 1221413769…66<19> | 2×13×23×47×151×282493×1018777 |
| 8 | Fully factored | 22 | 8449240506…70<22> | 2×5×647×1305910433…61<19> |
| 9 | Fully factored | 24 | 8026856835…06<24> | 2×491×1808948629<10>×451864055177<12> |
| 10 | Fully factored | 27 | 1338406721…06<27> | 2×6692033606…03<26> |
| 11 | Fully factored | 28 | 1873769409…86<28> | 2×229×271×981697×15624227×984249883 |
| 12 | Fully factored | 31 | 5017366691…06<31> | 2×293×331×2586724834…41<26> |
| 13 | Composite | 33 | 4451848630…06<33> | 2×2225924315…03<33> |
| ↳ | Open Open - the last known term is composite and not yet fully factored. | |||
Open end - submit a factor of the remaining composite
(33 digits) of term #13:
222592431542904461079126583700903
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 '434' --type 78 --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":"434"},"type":78,"part":"last20","fr":0}}'