factordbrpc · fdb
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Distinct-prime home prime · Base 16 of 629 length 19 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 3 629 17×37
1 Fully factored 4 4389 3×7×11×19
2 Fully factored 6 228115 5×43×1061
3 Fully factored 7 5420069 71×97×787
4 Fully factored 8 74846995 5×1153×12983
5 Fully factored 10 1417753271<10> 11×181×337×2113
6 Fully factored 11 50282698817<11> 13×317×839×14543
7 Fully factored 14 1437880019…87<14> 53×5393×50305603
8 Fully factored 15 9338335830…59<15> 13×45007×1596048449<10>
9 Fully factored 16 3852479886…49<16> 839×2116921×2169071
10 Fully factored 18 2361930215…91<18> 521×74843×6057286997<10>
11 Fully factored 20 3754714967…01<20> 34×73×9803×647753983159<12>
12 Fully factored 20 6061121574…63<20> 11×8623×1891499×337828129
13 Fully factored 23 5256739206…17<23> 3×232×3312375051…91<20>
14 Fully factored 24 2334951167…87<24> 89×7019×3737769821…57<18>
15 Fully factored 25 6732742601…05<25> 5×11×173×512287×18094831×76333531
16 Fully factored 28 1773304417…83<28> 3×83431×7084914152…31<22>
17 Fully factored 30 2439883627…55<30> 33×5×293×109×6798527406…13<21>
18 Composite 29 1643827978…49<29> 97×1694668019…17<27>
↳ Open Open - the last known term is composite and not yet fully factored.
Open end - submit a factor of the remaining composite (27 digits) of term #18:
169466801928860683831682617
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 '629' --type 129 --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":"629"},"type":129,"part":"last20","fr":0}}'