factordbrpc · fdb
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Inverse home prime · Base 7 of 25 length 73 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
53 Fully factored 92 5186791854…73<92> 32×19012055191<11>×1013863459…59<19>×2989838798…13<63>
54 Fully factored 94 5549773437…11<94> 479×1158616583…09<92>
55 Fully factored 95 2781838418…88<95> 22×107×7907353×4136988799<10>×3343013132…97<37>×5943394757…69<39>
56 Fully factored 98 8528985534…15<98> 5×967×26711×106893151×429019093×14329115263<11>×1004997256…91<64>
57 Fully factored 102 1075416453…95<102> 5×619×6626970141…87<48>×5243255361…83<50>
58 Fully factored 103 1305207289…14<103> 2×33×102701×121013×1245242852…33<16>×5368941390…37<24>×2908950357…67<52>
59 Fully factored 106 3548222707…26<106> 2×3×142061×556864991×7475406907…21<91>
60 Fully factored 108 5964796586…70<108> 2×5×17×683×234713×2188713256…99<98>
61 Fully factored 111 1039105081…23<111> 193×83357×21623252983<11>×8635214411…67<21>×3157061013…09<24>×1095678029…27<49>
62 Fully factored 112 2642627526…56<112> 27×3×83×709×1169446618…97<105>
63 Fully factored 117 5552019755…84<117> 22×3×19×1129×1739038170…33<37>×1240261033…29<76>
64 Fully factored 120 1092977395…43<120> 17×271×41976589×57829818671<11>×3524300584…23<17>×2773071390…77<81>
65 Fully factored 122 1017810603…72<122> 22×3×112×293×2392394163…77<116>
66 Fully factored 124 6757921370…85<124> 33×5×2159948428…29<34>×5580609051…51<41>×4152927838…89<48>
67 Fully factored 127 1631068145…89<127> 3×8663×2233106036…09<23>×4995853587…43<28>×5625530573…23<72>
68 Fully factored 128 3362281958…13<128> 19×53×83×1547827×2668939767…83<13>×5191299250…19<44>×1875812009…87<61>
69 Fully factored 131 2608114377…65<131> 5×19×41×406807×7542979×1967893927…21<17>×1108884134…99<99>
70 Fully factored 133 4942034927…69<133> 3×19×609996337×9533428882…93<15>×3085413623…99<25>×4832158861…63<83>
71 Fully factored 135 1718389635…24<135> 24×17×107×349×835394237×1199322742…71<33>×1688558034…47<87>
72 Composite 139 4203339533…36<139> 22×59×1781076073…01<137>
↳ Open Open - the last known term is composite and not yet fully factored.
Open end - submit a factor of the remaining composite (137 digits) of term #72:
17810760736751437600463897097589289492188662677910069310213157192641820438939214421878111016067738024143058799849606583192888268149944001
Check for factors - let the server run a small P-1 / P+1 / ECM step on the composite:
level 2 done · takes up to a minute
From the command linefdb · curl
fdb
fdb seq view '25' --type 17 --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":"25"},"type":17,"part":"last20","fr":0}}'