factordbrpc · fdb
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Inverse home prime · Base 31 of 295 length 18 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 3 295 5×59
1 Fully factored 4 1834 2×7×131
2 Fully factored 6 126110 2×5×12611
3 Fully factored 8 12119328 25×33×132×83
4 Fully factored 17 6838403577…78<17> 2×97×401×879039974537<12>
5 Fully factored 20 2516616816…87<20> 1109×1511×1501831066…13<14>
6 Fully factored 23 1332880599…63<23> 181×431×1708580328…33<18>
7 Fully factored 24 1577909813…65<24> 5×41×7697121040…13<21>
8 Fully factored 26 2293049329…59<26> 7×131×2500599050…27<23>
9 Fully factored 27 7449534631…25<27> 52×37×107×7526683133…03<22>
10 Fully factored 31 6679958986…07<31> 32×13×36083×79403967431<11>×1992705380…27<14>
11 Fully factored 36 4675935381…60<36> 23×5×79×499×2639002256…89<15>×1123676015…91<16>
12 Fully factored 42 7855097862…99<42> 17×19×239×10883×2265122213<10>×18200365907<11>×2267935971…39<14>
13 Fully factored 45 4723091506…27<45> 32×7×61×29683×577751×7166506142…33<31>
14 Fully factored 49 5644790177…11<49> 32×6271989086…79<48>
15 Fully factored 51 6027381512…15<51> 5×137×306323351×2872486563…29<40>
16 Fully factored 53 7594745939…52<53> 22×163×21859×5328872932…39<46>
17 Composite 57 1466112246…75<57> 52×23×1483×10149583×1693986817…53<44>
↳ Open Open - the last known term is composite and not yet fully factored.
Open end - submit a factor of the remaining composite (44 digits) of term #17:
16939868171307478848392628404076277450307653
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 '295' --type 81 --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":"295"},"type":81,"part":"last20","fr":0}}'