factordbrpc · fdb
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Home prime · Base 19 of 314 length 17 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 3 314 2×157
1 Fully factored 3 879 3×293
2 Fully factored 4 1376 25×43
3 Fully factored 8 99319085 5×53×374789
4 Fully factored 10 4600966731<10> 3×14627×104851
5 Fully factored 11 52856999241<11> 3×17618999747<11>
6 Fully factored 12 985682093084<12> 22×13×18955424867<11>
7 Fully factored 15 2494565458…34<15> 2×472×127×444595919
8 Fully factored 17 8959628938…96<17> 22×3×7466357448…33<16>
9 Fully factored 20 3209389273…50<20> 2×54×43×1423×419603428579<12>
10 Fully factored 25 4506397926…97<25> 36140937557<11>×1246895689…21<15>
11 Fully factored 26 7999127628…98<26> 2×2851×1402863491…99<23>
12 Fully factored 28 1725300095…28<28> 25×11×15601875139<11>×3141558743…01<15>
13 Fully factored 33 1964951928…09<33> 3×17×3852846919…59<31>
14 Fully factored 33 3663613038…13<33> 32×617×953×12841×5391258747…77<22>
15 Fully factored 37 2019060114…80<37> 24×5×11×17×29×4091×42283×120811×131071×1699070084…59<13>
16 Composite 44 6340727258…85<44> 5×7×1165895686…93<13>×1553858017…87<31>
↳ Open Open - the last known term is composite and not yet fully factored.
Open end - submit a factor of the remaining composite (31 digits) of term #16:
1553858017045240050549452345387
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 '314' --type 36 --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":"314"},"type":36,"part":"last20","fr":0}}'