factordbrpc · fdb
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Inverse home prime · Base 29 of 7769 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 4 7769 17×457
1 Fully factored 5 13270 2×5×1327
2 Fully factored 7 1116154 2×13×42929
3 Fully factored 8 36103668 22×3×1319×2281
4 Fully factored 13 1356824166…75<13> 54×2170918667<10>
5 Fully factored 16 1535449525…27<16> 7×61×1428839×2516659
6 Fully factored 19 1258949672…46<19> 2×11×16927×3380692686…59<13>
7 Fully factored 20 6934189141…19<20> 377717×1835816005…07<15>
8 Fully factored 21 1298437780…84<21> 22×3×71×163×557×6211×270257167
9 Fully factored 26 9562098104…08<26> 23×72×37×6592731732…77<22>
10 Fully factored 33 1137238069…38<33> 2×67×11399×134291×5544123927…73<21>
11 Fully factored 36 2332453038…40<36> 22×5×11×53×678384572693<12>×2948752995…73<20>
12 Fully factored 42 2544534616…67<42> 7043×3612856193…69<38>
13 Fully factored 42 8811394969…84<42> 23×9874431068…17<13>×1115430715…19<29>
14 Fully factored 46 3946558767…34<46> 2×3×17×8543×4529059186…19<40>
15 Fully factored 49 2693990026…12<49> 23×32×25169×828897019×1793481695…61<34>
16 Fully factored 57 4488124698…25<57> 52×72×12037×66413×1015055534…33<16>×4515103016…93<30>
17 Composite 62 6720840943…44<62> 23×3×7×439×491×1855958766…17<55>
↳ Open Open - the last known term is composite and not yet fully factored.
Open end - submit a factor of the remaining composite (55 digits) of term #17:
1855958766424769451180102888964598126645836377208822217
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 '7769' --type 79 --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":"7769"},"type":79,"part":"last20","fr":0}}'