Open
Show sequence-development graph
| n | Status | Digits | Term | Factorization |
|---|---|---|---|---|
| 0 | Fully factored | 4 | 2786 | 2×7×199 |
| 1 | Fully factored | 5 | 16444 | 22×4111 |
| 2 | Fully factored | 6 | 278471 | 281×991 |
| 3 | Fully factored | 7 | 1928370 | 2×3×5×64279 |
| 4 | Fully factored | 9 | 102235943 | 17×23×373×701 |
| 5 | Fully factored | 12 | 289805186068<12> | 22×30971×2339327 |
| 6 | Fully factored | 14 | 1298419751…16<14> | 23×11×101×2083×701329 |
| 7 | Fully factored | 16 | 4845262841…77<16> | 7×20353×34008765587<11> |
| 8 | Fully factored | 18 | 3009385809…87<18> | 288542879×1042959653<10> |
| 9 | Fully factored | 19 | 4900486176…92<19> | 22×11×37×110849×27155198911<11> |
| 10 | Fully factored | 23 | 1170624067…94<23> | 2×1867×3135040350…91<19> |
| 11 | Fully factored | 24 | 2366009998…06<24> | 2×71741×34573927×47694735329<11> |
| 12 | Fully factored | 25 | 5045959702…79<25> | 43×113×199×3571×32394379×45111191 |
| 13 | Fully factored | 26 | 8569435785…26<26> | 2×13×2359499×1396879948…49<19> |
| 14 | Composite | 28 | 1952908501…01<28> | 31271×6245110491…31<23> |
| ↳ | Open Open - the last known term is composite and not yet fully factored. | |||
Open end - submit a factor of the remaining composite
(23 digits) of term #14:
62451104914380300364031
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 '2786' --type 104 --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":"2786"},"type":104,"part":"last20","fr":0}}'