factordbrpc · fdb
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Inverse home prime · Base 11 of 634 length 20 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 3 634 2×317
1 Fully factored 4 3489 3×1163
2 Fully factored 5 12796 22×7×457
3 Fully factored 6 609138 2×32×43×787
4 Fully factored 9 126804768 25×3×17×77699
5 Fully factored 14 1665550132…19<14> 3×5551833775…73<13>
6 Fully factored 14 6107017153…06<14> 2×7×4362155109…79<13>
7 Fully factored 15 5278207682…38<15> 2×659×400470992591<12>
8 Fully factored 16 5863295802…82<16> 2×89×15913×2069997113<10>
9 Fully factored 18 4437222648…37<18> 7×53×307×5099×764036179
10 Fully factored 20 1981713079…25<20> 52×167×174457×27207954707<11>
11 Fully factored 22 7762747011…51<22> 7×53×67×131×30703×77645199851<11>
12 Fully factored 25 2680522883…72<25> 24×1733×5443942853<10>×17757728683<11>
13 Fully factored 29 9873150315…97<29> 2833×3485051293…09<26>
14 Fully factored 30 5102463599…02<30> 2×3×132×83×5099×3693411173<10>×321922400273<12>
15 Fully factored 35 2620536847…89<35> 3×16987×5142239844…49<30>
16 Fully factored 36 9109791561…49<36> 149×6113954067…01<34>
17 Fully factored 37 8137672864…80<37> 24×3×5×23×27539×1682281×19834363×1604339167…17<16>
18 Fully factored 44 2103287716…19<44> 97151×2929418808…53<15>×7390434029…73<24>
19 Composite 44 4519922232…97<44> 113×131×121661×2509746409…59<35>
↳ Open Open - the last known term is composite and not yet fully factored.
Open end - submit a factor of the remaining composite (35 digits) of term #19:
25097464096556726159942429108605559
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 '634' --type 21 --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":"634"},"type":21,"part":"last20","fr":0}}'