factordbrpc · fdb
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Inverse home prime · Base 9 of 48713 length 22 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
2 Fully factored 6 281873 251×1123
3 Fully factored 6 818918 2×241×1699
4 Fully factored 8 11149310 2×5×1114931
5 Fully factored 8 90309458 2×45154729
6 Fully factored 9 406392563 421×965303
7 Fully factored 9 703706308 22×6367×27631
8 Fully factored 11 14684762018<11> 2×349×21038341
9 Fully factored 12 138032558444<12> 22×11×401×7823201
10 Fully factored 14 3741813049…41<14> 7×5345447213…63<13>
11 Fully factored 14 4810902492…74<14> 2×719×33455511073<11>
12 Fully factored 15 2195016081…26<15> 2×1097508040…13<15>
13 Fully factored 15 9877572367…19<15> 11×8979611242…29<14>
14 Fully factored 16 7273485106…60<16> 23×5×73×181×2928935903<10>
15 Fully factored 20 1021256801…76<20> 22×17×109×3583×6361×60454321
16 Fully factored 23 1244700879…51<23> 17×6121×20369×66601×88174547
17 Fully factored 25 1470502943…99<25> 89×1652250498…91<23>
18 Fully factored 26 1204490613…28<26> 24×10067×196449787×380655234577<12>
19 Fully factored 29 5713430860…87<29> 866707×4485623×1469609335…67<17>
20 Fully factored 30 3361994776…81<30> 7×4802849680…83<29>
21 Composite 30 4322564712…54<30> 2×2161282356…77<30>
↳ Open Open - the last known term is composite and not yet fully factored.
Open end - submit a factor of the remaining composite (30 digits) of term #21:
216128235614918846648068456577
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 '48713' --type 19 --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":"48713"},"type":19,"part":"last20","fr":0}}'