factordbrpc · fdb
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Inverse home prime · Base 2 of 262 length 108 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
88 Fully factored 69 7837371616…70<69> 2×33×5×103×17519×2500843×17201189923<11>×2172270219…41<18>×1721477579…57<27>
89 Fully factored 71 6142437258…10<71> 2×5×37×827923×1729249485…81<15>×5638304030…53<16>×2056567232…37<33>
90 Fully factored 73 1119701705…14<73> 2×8644703×4232971360…57<16>×1529948938…17<50>
91 Fully factored 73 4623986935…10<73> 2×5×8447×69580241×7867344642…53<60>
92 Fully factored 74 5536151624…26<74> 2×61871×2265101×557592613×4839485073…71<13>×7319595929…11<41>
93 Fully factored 75 7601102990…34<75> 2×1729621×40347617×5446001819…31<61>
94 Fully factored 76 3065826470…94<76> 2×32×7×1069×66569×2014225831<10>×1697536515…59<57>
95 Fully factored 77 5010243465…18<77> 2×73×100699×1612014119<10>×3548674013…51<19>×5957250592…93<42>
96 Fully factored 78 3959272132…54<78> 2×101×283×1887856867…63<18>×3668668611…63<56>
97 Fully factored 79 2771967630…42<79> 2×31×179×83101×594359×634159×2206665604…79<14>×3013524121…83<15>×1199165106…87<31>
98 Fully factored 81 1121652330…62<81> 2×2441×79493×2890224649…87<72>
99 Fully factored 81 6206710173…54<81> 2×3103355086…27<81>
100 Fully factored 82 1241342034…10<82> 2×5×17×38671×1888239758…33<75>
101 Fully factored 83 1267176251…82<83> 2×701791×12348487×7311146496…23<69>
102 Fully factored 83 5144761974…86<83> 2×197×883×38281×3863003370…53<73>
103 Fully factored 84 2654635702…46<84> 2×11×2504317×2068218253<10>×5709555004…31<27>×4080320907…03<40>
104 Fully factored 85 1455907150…98<85> 2×532×3739×2496097×416642879×1608609253…63<28>×4143053051…21<35>
105 Fully factored 86 1550100177…02<86> 2×33×31×139×2269×2935993002…53<77>
106 Fully factored 87 2521998785…42<87> 2×2615544830…99<17>×1054348035…81<26>×4572657949…09<45>
107 Composite 88 1274670997…98<88> 2×23×229×1210054108…97<84>
↳ Open Open - the last known term is composite and not yet fully factored.
Open end - submit a factor of the remaining composite (84 digits) of term #107:
121005410816941573524671438356222139747847387466685866267319983271458328208260757397
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 '262' --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":"262"},"type":12,"part":"last20","fr":0}}'