factordbrpc · fdb
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Home prime · Base 33 of 434 length 19 Not fully computed yet - the last known term is composite. ↓ .elf file
Show sequence-development graph
Term size (digits) across the sequence
How the sequence develops - decimal digits of each term vs iteration.
nStatus DigitsTermFactorization
0 Fully factored 3 434 2×7×31
1 Fully factored 4 2440 23×5×61
2 Fully factored 8 80720008 23×101×99901
3 Fully factored 13 2900756936…96<13> 23×181×4703×425959
4 Fully factored 18 1042479134…97<18> 643199×162077231903<12>
5 Fully factored 18 9046007789…62<18> 2×36713×189529×65002703
6 Fully factored 22 3688892467…99<22> 83×129001×3445282405…53<15>
7 Fully factored 24 1509531051…09<24> 553733×2726099133…73<18>
8 Fully factored 24 9235657373…86<24> 2×18869×2447309707…47<20>
9 Fully factored 25 4994551315…06<25> 2×10627×2349934748…89<21>
10 Fully factored 27 1498494150…18<27> 2×2039×3674581046…81<23>
11 Fully factored 28 4430304024…22<28> 2×89×2488934845…49<26>
12 Fully factored 30 1479999402…40<30> 22×5×17×2549×72993337139<11>×2339535115…41<13>
13 Fully factored 36 1741333981…19<36> 953×453143×4476828292…97<13>×9007068412…13<14>
14 Fully factored 38 8036882369…98<38> 2×7×71×7307×1324174711<10>×4975699441<10>×1679433035…81<13>
15 Fully factored 45 2410471430…96<45> 24×7×199×719×7495021717<10>×2006915575…79<28>
16 Fully factored 51 2662900151…73<51> 173×40874797×3765764616…33<41>
17 Fully factored 53 2234012325…51<53> 157×1039×16981×21577177×2104020767…69<15>×1776488729…29<22>
18 Composite 54 6729859765…72<54> 23×23371×3599471441…29<49>
↳ Open Open - the last known term is composite and not yet fully factored.
Open end - submit a factor of the remaining composite (49 digits) of term #18:
3599471441687004374079571219697811235334363718829
Check for factors - let the server run a small P-1 / P+1 / ECM step on the composite:
level 0 done · takes up to a minute
From the command linefdb · curl
fdb
fdb seq view '434' --type 50 --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":"434"},"type":50,"part":"last20","fr":0}}'