factordbrpc · fdb
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Inverse home prime · Base 21 of 2245 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 4 2245 5×449
1 Fully factored 4 9434 2×53×89
2 Fully factored 6 825344 211×13×31
3 Fully factored 18 2326192881…66<18> 2×89×46093×28352459879<11>
4 Fully factored 20 5106529059…83<20> 3169×18979×849044088833<12>
5 Fully factored 22 1529203579…41<22> 428093×3572129371…37<16>
6 Fully factored 23 1458893713…30<23> 2×5×109×223×491×77369×1579951721<10>
7 Fully factored 27 2440588991…20<27> 22×5×467×797×2969×1104280117…01<17>
8 Fully factored 32 8122894067…03<32> 636553×49826596909<11>×2561031934…39<16>
9 Fully factored 34 8307782539…21<34> 771179×225709889×1278850477<10>×37321541083<11>
10 Fully factored 36 4944543116…48<36> 22×79×827×877×445427×60245482867<11>×80395724723<11>
11 Fully factored 43 4350067822…84<43> 22×13×12329×314739218873<12>×591928015421<12>×3642043041…31<14>
12 Fully factored 47 4138352135…11<47> 263173279×10735699033<11>×1464722398…73<29>
13 Composite 48 9978028588…05<48> 5×1995605717…81<48>
↳ Open Open - the last known term is composite and not yet fully factored.
Open end - submit a factor of the remaining composite (48 digits) of term #13:
199560571761870557102533486745607804963474027281
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 '2245' --type 71 --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":"2245"},"type":71,"part":"last20","fr":0}}'