Open
Show sequence-development graph
| n | Status | Digits | Term | Factorization |
|---|---|---|---|---|
| 0 | Fully factored | 3 | 560 | 24×5×7 |
| 1 | Fully factored | 4 | 1834 | 2×7×131 |
| 2 | Fully factored | 5 | 18356 | 22×13×353 |
| 3 | Fully factored | 7 | 1190810 | 2×5×193×617 |
| 4 | Fully factored | 8 | 12364457 | 7×17×103903 |
| 5 | Fully factored | 9 | 310465447 | 3863×80369 |
| 6 | Fully factored | 10 | 2053036952<10> | 23×41×6259259 |
| 7 | Fully factored | 11 | 74993647241<11> | 31×2419149911<10> |
| 8 | Fully factored | 12 | 110509466342<12> | 2×11×479×1471×7129 |
| 9 | Fully factored | 14 | 4904597109…52<14> | 22×132×17×191×22344691 |
| 10 | Fully factored | 17 | 3736342753…26<17> | 2×17×41×2671×10034830649<11> |
| 11 | Fully factored | 19 | 2993740889…48<19> | 22×7×1069193174…41<18> |
| 12 | Fully factored | 20 | 2817461611…68<20> | 22×79×8916017758…23<17> |
| 13 | Fully factored | 21 | 2550999455…02<21> | 2×1013×3542653×35542036559<11> |
| 14 | Fully factored | 23 | 1909528957…67<23> | 7×113×2414069479…37<20> |
| 15 | Fully factored | 24 | 5707535880…81<24> | 23×31×61842749×1294405453…13<14> |
| 16 | Fully factored | 26 | 1678781956…28<26> | 22×67×773×2167769×3738238477…33<14> |
| 17 | Composite | 29 | 1090060682…94<29> | 2×5450303410…97<28> |
| ↳ | Open Open - the last known term is composite and not yet fully factored. | |||
Open end - submit a factor of the remaining composite
(28 digits) of term #17:
5450303410678618349425825997
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 '560' --type 94 --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":"560"},"type":94,"part":"last20","fr":0}}'