factordbrpc · fdb
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Inverse home prime · Base 2 of 678 length 131 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
111 Fully factored 87 1202719751…50<87> 2×3×52×43×103×52183×479797×3803760232…71<19>×1900937329…01<52>
112 Fully factored 88 2526779116…74<88> 2×29×7207×6044839347…29<82>
113 Fully factored 88 6338473463…18<88> 2×19×6645402828…19<23>×2510034945…19<64>
114 Fully factored 89 2427556842…62<89> 2×32×116565149×768680966359<12>×1372678609…97<15>×1277668309…27<16>×1996267765…99<19>×4299087348…29<20>
115 Fully factored 90 2967121039…38<90> 2×7×47×4118761×9223918366…37<19>×1186936067…23<62>
116 Fully factored 91 1880775273…22<91> 2×17×1835842452…97<31>×3013162687…39<59>
117 Fully factored 91 9778271973…70<91> 2×5×7×5987×2333215293…03<86>
118 Fully factored 92 4893107119…74<92> 2×3×11×157739×2791230535…11<42>×1683860064…91<44>
119 Fully factored 93 3937542785…34<93> 2×151×18787×859279261×21013948223<11>×4892010419…01<30>×7856543985…97<37>
120 Fully factored 94 6164540735…98<94> 2×2406852578…81<13>×2283641586…79<27>×5607810089…01<55>
121 Fully factored 95 3053182224…86<95> 2×37×4003×20327×60659×5586823208…31<16>×4554001605…23<17>×4181845592…33<19>×7856711039…29<29>
122 Fully factored 96 5295412765…62<96> 2×3×37×1327×2237×6639591417…23<38>×1210231859…73<50>
123 Fully factored 97 8843779224…18<97> 2×739×955771709×4253903531…39<20>×1951109216…37<24>×7542929866…63<42>
124 Fully factored 98 7398084086…82<98> 2×8297×157277×3486925615…91<24>×5048085099…43<30>×1610399438…03<36>
125 Fully factored 100 1059967845…50<100> 2×52×1621×1247321×2507374453…11<13>×4181597631…81<76>
126 Fully factored 101 2022096537…66<101> 2×7×76057331333<11>×1899034115…93<89>
127 Fully factored 101 8352040368…58<101> 2×33×157×2267×43013×487472269×2072516531…39<81>
128 Fully factored 103 1957436520…78<103> 2×132×29×10957×1370375801…87<16>×1329969391…21<80>
129 Fully factored 104 1607834336…98<104> 2×2417×4088460659<10>×8135323551…33<90>
130 Composite 104 5724725018…38<104> 2×5077×42624811×1322680665…77<93>
↳ Open Open - the last known term is composite and not yet fully factored.
Open end - submit a factor of the remaining composite (93 digits) of term #130:
132268066536249943137518292477633130193337885647798124697787078058301028076794123881143555077
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 '678' --type 12 --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":"678"},"type":12,"part":"last20","fr":0}}'