factordbrpc · fdb
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Home prime · Base 33 of 403 length 14 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 3 403 13×31
1 Fully factored 3 460 22×5×23
2 Fully factored 5 74240 29×5×29
3 Fully factored 16 3158881657…52<16> 22×59×2271883×5891629
4 Fully factored 21 1135069390…87<21> 7×1621527701…41<20>
5 Fully factored 21 4014977549…32<21> 23×137×45959×7970801549…13<13>
6 Fully factored 27 1346304142…43<27> 317×39190471×1083685935…49<17>
7 Fully factored 29 2069368396…97<29> 700211×7557127×3910678938…01<16>
8 Fully factored 31 1385007377…51<31> 109×503×240417814697<12>×1050729579…29<15>
9 Fully factored 33 2567688697…18<33> 2×13×191×1110324074…39<13>×4656781896…07<17>
10 Fully factored 34 6128961971…04<34> 23×19×79×1237×19379×497449×32400919×1321019701<10>
11 Fully factored 42 2062386182…49<42> 13×19×43×5807×23737699×1408685800…33<27>
12 Fully factored 46 1478109984…18<46> 2×1557029×4746571785…21<39>
13 Composite 48 2418336216…56<48> 23×67×1703113×1019334209…41<14>×2598913508…37<26>
↳ Open Open - the last known term is composite and not yet fully factored.
Open end - submit a factor of the remaining composite (26 digits) of term #13:
25989135081212536259600437
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 '403' --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":"403"},"type":50,"part":"last20","fr":0}}'