factordbrpc · fdb
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Inverse home prime · Base 5 of 1941 length 33 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
13 Fully factored 16 3070043276…42<16> 2×3×7×13×43×3797×34438387
14 Fully factored 19 1050976173…92<19> 25×41×8010489124…91<15>
15 Fully factored 21 3129097314…62<21> 2×29×37×89×1237×2393×12641×43783
16 Fully factored 23 6524295966…47<23> 7×31×181×7219×2301008926…69<15>
17 Fully factored 25 7022121969…07<25> 1117×7283×7649×105971×1064910703<10>
18 Fully factored 27 3173681209…67<27> 3×41×71×47878073×7590374041…63<15>
19 Fully factored 28 2895497910…83<28> 491×5897144419…13<25>
20 Fully factored 28 3685715262…16<28> 22×33×269×41333×56385613×54435286277<11>
21 Fully factored 31 2027872438…37<31> 13×587×3083×8619571060…69<23>
22 Fully factored 31 4208774931…88<31> 23×32×5845520738…79<29>
23 Fully factored 33 1826725230…87<33> 32×47×509×12553×454451×4505993×33005777879<11>
24 Fully factored 35 1921189126…18<35> 2×96659713×437410972001<12>×2271982335…43<15>
25 Fully factored 36 2115948438…67<36> 3×157×19541×2298991622…97<29>
26 Fully factored 37 5612772515…38<37> 2×13×89×307×773×1022106656…47<29>
27 Fully factored 39 3119221974…67<39> 3×72×109×99527×1609667×1215137699…81<24>
28 Fully factored 41 3621392545…13<41> 32×7×199×13445503×2148349442…83<30>
29 Fully factored 43 4097651372…18<43> 2×353×18637×185021×1683190517…39<31>
30 Fully factored 45 1605215565…92<45> 22×3×179×2383×36791×174091×4896177240…23<28>
31 Fully factored 47 3647936314…62<47> 2×35×7×47×6349631293<10>×55027951379<11>×6529549643…59<21>
32 Composite 51 1484647701…42<51> 2×1452201631<10>×5111713379…41<41>
↳ Open Open - the last known term is composite and not yet fully factored.
Open end - submit a factor of the remaining composite (41 digits) of term #32:
51117133795768000410812913748438375782841
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 '1941' --type 15 --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":"1941"},"type":15,"part":"last20","fr":0}}'