factordbrpc · fdb
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Home prime · Base 23 of 1047 length 16 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 1047 3×349
1 Fully factored 4 1936 24×112
2 Fully factored 8 13458024 23×32×186917
3 Fully factored 12 163748028703<12> 7×59×79×5018789
4 Fully factored 14 1280946682…00<14> 22×53×89×397×725071
5 Fully factored 19 1056882465…28<19> 22×59×4139×6719×161032903
6 Fully factored 23 1282840093…40<23> 23×5×83×128461×3007898261…37<14>
7 Fully factored 27 1560329743…96<27> 26×2381×1645439303<10>×622293337273<12>
8 Fully factored 34 1004160696…99<34> 11×563×142609×1136986227…27<25>
9 Fully factored 36 1220150234…48<36> 23×1525187793…31<35>
10 Fully factored 39 2809974873…65<39> 3×5×36794183×2426193656…93<13>×2098488291…49<18>
11 Fully factored 42 2295066193…91<42> 19×43×13553×9091613×278482987×8186497084…61<19>
12 Fully factored 47 1650548539…72<47> 23×3×7×15934271×6165762894…49<37>
13 Fully factored 53 1164162789…50<53> 2×32×52×11×61×109×673×5255779271…31<42>
14 Fully factored 59 7656093796…93<59> 7×24001×1168931×632493607×1914641412…71<17>×3219195885…57<23>
15 Composite 63 1343196343…26<63> 2×41×83×25469×7748821609…59<54>
↳ Open Open - the last known term is composite and not yet fully factored.
Open end - submit a factor of the remaining composite (54 digits) of term #15:
774882160968168464720002198563687814717244142272477759
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 '1047' --type 40 --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":"1047"},"type":40,"part":"last20","fr":0}}'