factordbrpc · fdb
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Inverse home prime · Base 17 of 6178 length 17 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 6178 2×3089
1 Fully factored 5 52515 33×5×389
2 Fully factored 8 32515155 33×5×240853
3 Fully factored 11 20116308899<11> 191×105320989
4 Fully factored 11 30437766012<11> 22×3×173×281×52177
5 Fully factored 14 2141064077…90<14> 2×5×337×6353305867<10>
6 Fully factored 16 9020785808…99<16> 33×7×41×310711×3746641
7 Fully factored 21 1284044993…85<21> 5×2568089987…97<20>
8 Fully factored 21 4365752978…54<21> 2×3×67×281×1453×475297×5596237
9 Fully factored 24 9422822793…56<24> 22×3×9623×183041×4458008705…91<14>
10 Fully factored 29 2597335005…46<29> 2×3×1097×18732509×2106561491…67<18>
11 Fully factored 31 7219585699…10<31> 2×3×5×43×73×137633×309707×822347×2187111859<10>
12 Fully factored 37 2568900397…24<37> 23×28755871×1116685179…93<29>
13 Fully factored 41 2251230510…94<41> 2×3×29×103×1019×477229×2583048033…27<28>
14 Fully factored 45 4349280137…04<45> 23×947×19927×54679×824122973×44776634213<11>×1427813439…87<13>
15 Fully factored 51 1988785881…04<51> 22×1322336387…07<15>×3759984789…93<36>
16 Composite 53 6330980667…56<53> 23×1483×1667×292801×1093280731…87<41>
↳ Open Open - the last known term is composite and not yet fully factored.
Open end - submit a factor of the remaining composite (41 digits) of term #16:
10932807312156897419449735928890724096687
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 '6178' --type 67 --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":"6178"},"type":67,"part":"last20","fr":0}}'