factordbrpc · fdb
Sign in
Show
Open
Aliquot of 150^31 length 657 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
637 Fully factored 106 6809414340…90<106> 2×32×5×607×6133478642…97<13>×2032224595…29<89>
638 Fully factored 107 1092423012…90<107> 2×33×5×77591×4575585607<10>×3961511833…63<20>×1019404192…37<22>×2822030276…21<49>
639 Fully factored 107 1820742565…90<107> 2×33×5×7×59×113×7589×21603661×1175998775…03<25>×2202971363…77<32>×3401955731…87<33>
640 Fully factored 107 3872925103…10<107> 2×33×5×31×11173×1536134837<10>×22433055199<11>×9345904881…51<29>×1285892672…37<51>
641 Fully factored 107 6788984197…90<107> 2×33×5×11×172×109×1336267×7754948685…31<24>×7002479337…51<69>
642 Fully factored 108 1438336927…10<108> 2×33×5×11×17×71×97×1439×535237×1400896930…79<30>×3833646563…31<61>
643 Fully factored 108 3103928473…90<108> 2×33×5×11×38321×4021032527<10>×6782359966…41<90>
644 Fully factored 108 5925917264…90<108> 2×33×5×1031×10778233×84963191×2324634995…59<88>
645 Fully factored 108 9891857728…10<108> 2×33×5×11×3407×9917414909<10>×1355506958…37<21>×2445478854…09<29>×2973617694…17<43>
646 Fully factored 109 1889290189…90<109> 2×33×5×7161703×2390193021…69<16>×4087762211…61<84>
647 Fully factored 109 3148817686…10<109> 2×33×5×239×201281093107<12>×2424280502…21<93>
648 Fully factored 109 5283162729…90<109> 2×33×5×19×526733×667868744863<12>×1444969752…29<22>×2025984968…83<67>
649 Fully factored 109 9546795893…10<109> 2×33×5×1124632495…41<20>×3144005127…73<88>
650 Fully factored 110 1591132648…50<110> 2×32×52×17×73277377×2838409403…13<98>
651 Fully factored 110 2935171818…54<110> 2×32×11×17×61×257797×1573927×2191261×1607803717…31<87>
652 Fully factored 110 4531065477…94<110> 2×32×17×1480740352…49<108>
653 Fully factored 110 5863731794…06<110> 2×32×23×55639×159694540997<12>×1594058921…13<92>
654 Fully factored 110 7393639228…74<110> 2×32×2083×26251×98507×511723×110276851×1754086247…89<16>×8588825357…87<16>×8969733219…27<51>
655 Fully factored 110 8634407761…06<110> 2×32×739×6553×10588183×672043651711<12>×3436968462…19<14>×1671152876…97<35>×2423621482…89<36>
656 Composite 111 1010165134…94<111> 2×32×5612028525…83<109>
↳ Open Open - the last known term is composite and not yet fully factored.
Open end - submit a factor of the remaining composite (109 digits) of term #656:
5612028525357856429596578607750756344214144410656844822897951354368975741021097488489427568107504735773215283
Check for factors - let the server run a small P-1 / P+1 / ECM step on the composite:
Already checked (P-1, P+1 and ECM steps done, level 3).
From the command linefdb · curl
fdb
fdb seq view '150^31' --type 1 --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":"150^31"},"type":1,"part":"last20","fr":0}}'