Open
Show sequence-development graph
| n | Status | Digits | Term | Factorization |
|---|---|---|---|---|
| 0 | Fully factored | 3 | 411 | 3×137 |
| 1 | Fully factored | 4 | 1724 | 22×431 |
| 2 | Fully factored | 5 | 25823 | 72×17×31 |
| 3 | Fully factored | 7 | 2053080 | 23×33×5×1901 |
| 4 | Fully factored | 13 | 3766201263…37<13> | 19×61×51419×63197 |
| 5 | Fully factored | 15 | 7918950723…48<15> | 23×3×67×569×2129×406531 |
| 6 | Fully factored | 23 | 1282325296…79<23> | 83×109×1181×1200172639…97<16> |
| 7 | Fully factored | 26 | 1173624240…10<26> | 2×5×5739991247<10>×2044644652…03<15> |
| 8 | Fully factored | 28 | 3810858136…09<28> | 32×41×373×61483×4503317151…79<18> |
| 9 | Fully factored | 31 | 2845065933…10<31> | 2×3×5×449×4125805732…91<13>×5119363466…73<14> |
| 10 | Fully factored | 35 | 2365441644…01<35> | 3×925903673×3901620293<10>×2182630277…03<16> |
| 11 | Fully factored | 38 | 1911862812…70<38> | 2×5×107×1303×2251×668527×672953×1354095678…27<17> |
| 12 | Composite | 43 | 3640206325…95<43> | 5×11×486180307×749835217×1815516135…11<24> |
| ↳ | Open Open - the last known term is composite and not yet fully factored. | |||
Open end - submit a factor of the remaining composite
(24 digits) of term #12:
181551613591494770505611
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 '411' --type 40 --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":"411"},"type":40,"part":"last20","fr":0}}'