Open
Show sequence-development graph
| n | Status | Digits | Term | Factorization |
|---|---|---|---|---|
| 0 | Fully factored | 2 | 90 | 2×32×5 |
| 1 | Fully factored | 5 | 25995 | 3×5×1733 |
| 2 | Fully factored | 6 | 902091 | 3×389×773 |
| 3 | Fully factored | 8 | 24042765 | 3×5×1602851 |
| 4 | Fully factored | 9 | 477892233 | 32×7×13×709×823 |
| 5 | Fully factored | 13 | 5664157812…44<13> | 24×35×13×112063901 |
| 6 | Fully factored | 21 | 5575110339…99<21> | 3×1858370113…33<21> |
| 7 | Fully factored | 21 | 9857427176…54<21> | 2×3023×1630404759…99<18> |
| 8 | Fully factored | 23 | 1378908579…30<23> | 2×5×7×41×43×197×5671773710…59<15> |
| 9 | Fully factored | 27 | 1664500005…74<27> | 2×43×149×823×141954133×111186281149<12> |
| 10 | Fully factored | 31 | 1889971168…71<31> | 151×11287×37951×436483×6694361320…51<14> |
| 11 | Fully factored | 34 | 3172321151…07<34> | 83×1061×3221×192583×8253521×7036160499…63<13> |
| 12 | Fully factored | 38 | 2110853000…50<38> | 2×32×52×173×1733×3517×160226882797<12>×2776470468…49<15> |
| 13 | Composite | 44 | 8035278538…83<44> | 17×8647×325681×1678394828…57<34> |
| ↳ | Open Open - the last known term is composite and not yet fully factored. | |||
Open end - submit a factor of the remaining composite
(34 digits) of term #13:
1678394828550335319706173577716257
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 '90' --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":"90"},"type":40,"part":"last20","fr":0}}'