Open
Show sequence-development graph
| n | Status | Digits | Term | Factorization |
|---|---|---|---|---|
| 0 | Fully factored | 4 | 1497 | 3×499 |
| 1 | Fully factored | 4 | 2374 | 2×1187 |
| 2 | Fully factored | 5 | 32437 | 163×199 |
| 3 | Fully factored | 6 | 102074 | 2×7×23×317 |
| 4 | Fully factored | 6 | 905317 | 7×283×457 |
| 5 | Fully factored | 7 | 2911707 | 34×103×349 |
| 6 | Fully factored | 8 | 30924099 | 34×293×1303 |
| 7 | Fully factored | 9 | 776063803 | 73×997×10663 |
| 8 | Fully factored | 11 | 17837854413<11> | 3×997×5963843 |
| 9 | Fully factored | 12 | 467505963843<12> | 3×25057×6219233 |
| 10 | Fully factored | 14 | 1168879528…33<14> | 3×821×27943×169837 |
| 11 | Fully factored | 16 | 7277842946…12<16> | 22×677×2687534322…89<13> |
| 12 | Fully factored | 19 | 3102026765…14<19> | 2×17×9123608135…71<17> |
| 13 | Fully factored | 20 | 9992901608…46<20> | 2×3×585727×2843446864…33<14> |
| 14 | Fully factored | 23 | 4941595576…33<23> | 7×7059422251…19<22> |
| 15 | Fully factored | 24 | 1700408728…94<24> | 2×32×296509×1585967×20088559411<11> |
| 16 | Composite | 27 | 7728574934…86<27> | 2×3864287467…43<27> |
| ↳ | Open Open - the last known term is composite and not yet fully factored. | |||
Open end - submit a factor of the remaining composite
(27 digits) of term #16:
386428746702077265293303143
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 '1497' --type 110 --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":"1497"},"type":110,"part":"last20","fr":0}}'