factordbrpc · fdb
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Inverse home prime · Base 28 of 13117 length 15 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 5 13117 13×1009
1 Fully factored 5 28265 5×5653
2 Fully factored 6 158289 3×19×2777
3 Fully factored 7 2177703 32×11×21997
4 Fully factored 9 482886855 32×5×11×89×97×113
5 Fully factored 14 4273842412…19<14> 3×1424614137…73<14>
6 Fully factored 15 3988919584…47<15> 73×211×233×2441×45533
7 Fully factored 18 4816700113…73<18> 6427×7494476604…99<14>
8 Fully factored 19 1645187504…75<19> 33×52×15359×158689681687<12>
9 Fully factored 23 5995327885…23<23> 11×19×149077×1924225692…11<16>
10 Fully factored 24 9272657039…55<24> 3×5×19×61×107×4712039×105788107571<12>
11 Fully factored 29 2456593080…91<29> 29×9643×714097763×1230170723…31<15>
12 Fully factored 32 2856681110…21<32> 3×449×647×1097×2988018342…77<23>
13 Fully factored 35 1128879300…87<35> 11×229×2027×34141×108043847×5993621545…37<15>
14 Composite 38 8554956751…71<38> 8554956751…71<38>
↳ Open Open - the last known term is composite and not yet fully factored.
Open end - submit a factor of the remaining composite (38 digits) of term #14:
85549567514322094341357035405342531671
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 '13117' --type 78 --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":"13117"},"type":78,"part":"last20","fr":0}}'