factordbrpc · fdb
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Distinct-prime home prime, descending · Base 8 of 458 length 24 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
4 Fully factored 6 139114 2×69557
5 Fully factored 6 556458 2×3×7×13249
6 Fully factored 7 6783962 2×313×10837
7 Fully factored 8 44390858 2×4051×5479
8 Fully factored 9 179568282 2×3×29928047
9 Fully factored 10 1915395034<10> 2×7×136813931
10 Fully factored 10 8756091642<10> 2×3×97×1123×13397
11 Fully factored 13 1798151706…14<13> 2×3×11×29×281×443×7547
12 Fully factored 15 5186854231…74<15> 2×72×5292708399…13<13>
13 Fully factored 15 3387333375…90<15> 2×5×7×4839047679…47<13>
14 Fully factored 16 2477592411…54<16> 2×47×2635736608…91<14>
15 Fully factored 17 1349497143…70<17> 2×5×631×2138664252…47<13>
16 Fully factored 18 5606380018…94<18> 2×16062539×17451724223<11>
17 Fully factored 19 2342330775…58<19> 2×30124621×38877348449<11>
18 Fully factored 20 4174423503…46<20> 2×3×1546991×4497358101…01<13>
19 Fully factored 21 6036251863…78<21> 2×33×19×5883286416…53<18>
20 Fully factored 22 2409794116…30<22> 2×5×2409794116…13<21>
21 Fully factored 23 1542268234…74<23> 2×21323×32083×95003×118650431
22 Fully factored 24 2671770192…02<24> 2×3×19×451621×5189435529…33<16>
23 Composite 26 4457691177…94<26> 2×3×7×1061355042…57<25>
↳ Open Open - the last known term is composite and not yet fully factored.
Open end - submit a factor of the remaining composite (25 digits) of term #23:
1061355042181840062136057
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 '458' --type 132 --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":"458"},"type":132,"part":"last20","fr":0}}'