factordbrpc · fdb
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Inverse home prime · Base 6 of 2886 length 25 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
5 Fully factored 10 2235786560<10> 26×5×7×227×4397
6 Fully factored 14 5743016143…38<14> 2×139×206583314521<12>
7 Fully factored 15 2677319756…52<15> 22×17×223×17655762043<11>
8 Fully factored 17 2965490041…22<17> 2×23×6446717482…07<15>
9 Fully factored 18 1392490976…52<18> 22×659×5282590956…07<14>
10 Fully factored 19 2464645636…30<19> 2×5×17×1449791551…49<17>
11 Fully factored 20 1878929850…48<20> 22×11×19×3426131×6559946903<10>
12 Fully factored 22 3084388533…98<22> 2×13×37×277×2440327×4743142951<10>
13 Fully factored 25 2890280355…32<25> 23×13×37498755529<11>×741122121877<12>
14 Fully factored 27 4516099835…90<27> 2×5×1753×4703×5477805897…21<19>
15 Fully factored 29 1192399111…04<29> 22×7×13×3275821735…11<26>
16 Fully factored 31 1528367388…30<31> 2×5×17923×89526707×9524988220…53<17>
17 Fully factored 32 5804144345…60<32> 22×5×409×579173453587<12>×1225113295…41<17>
18 Fully factored 34 9675089962…26<34> 2×167×173×1674412440…43<30>
19 Fully factored 35 4687283209…60<35> 22×5×17053×1374328038…31<30>
20 Fully factored 37 1385006017…18<37> 2×72×37×73×3029842227…81<15>×1726954861…61<17>
21 Fully factored 40 3817846804…08<40> 22×251×6247×6087139842…41<33>
22 Fully factored 42 2208396414…78<42> 2×172×23×37×59×7609701532…89<34>
23 Fully factored 44 9938798326…64<44> 25×19309×1608511304…03<39>
24 Composite 47 5835631656…62<47> 2×61×447779×1068228888…49<40>
↳ Open Open - the last known term is composite and not yet fully factored.
Open end - submit a factor of the remaining composite (40 digits) of term #24:
1068228888910366412142972649919986164149
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 '2886' --type 16 --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":"2886"},"type":16,"part":"last20","fr":0}}'