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Enter a value, an expression, or a term with a variable like 10^n+1 to list a range. Switch to Database id to look a number up by its stored id. Reading never stores anything; use Create to add a number to the database. See the expression syntax & functions reference.

P · Proven prime
id #1100000008766976857 2,026 digits created 2026-04-21

Value

7774154528540844117831886730291404241724877415350750937470443117517826458587610390311090019218601251183689314473311261345093202631390913380142567622730804619468472113878780873465537298773974083254897175556588258960390699362596040959577888334446185199469621901486939715727333432270477007327586367319249125026569269609999851350686504147093031284209393339512482375945848106934985480530810102431320600769496744219829460740142852404806457432995386187011505294602471935297680325557390815914306836700272291591083515827194529984296623277354966313972281736062290145892281920213845660623534780268700760091219917210163714290790162253383836299153212212739081874786164071440196597631542587379184336539014566699938133684880805641694320127431248918229865674928679010062181956313009389677590193059168627469431403944546988869253369704836505363738588533972497472622809510365463865754652191659114933109314057252137630102525272758888580687371722325038354837481919099236159709043278889835307250738176753121999099783003474175835229887220648699259126520383005086343254053970399540225497263445751781315707097181886926066263619116342366624493175179094034563355055485406298765553054285867026805294820604932733546439889794842221205632512592428430989271422627298719289714567828053087081874614049664252572792700327822523868372171775206146642575769157551008173707421362704904029809611326399092704716360254829972614000157229200019474873327456685062948020472602806752566514460800982350328442095368045151167521709166142972911559028174123288374525117675275011447458680028814884992962191195483636344900085325523506100944335538132814904475092094768180274615316129428413769660417063350976964629194317552519457970202308153409729060723676794906629316930402548720823039907292456128546896563164663940648852812328315110754278421843432535844432724547115336320266188699599463069103687385692069099540791543293167296343063213320478090027441261405974596152465134138135795524514723345396481870772614255345516814163497118640008495516071352748420486110969705993083282819573673
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 75 of the certificate chain of a 3,124-digit prime (188 intermediate primes).

Certified number3,124-digit prime
Certificatedownload
Certificate chainshow step 75 of 188

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008766976857 --detail 2 --decimal
curl
curl -s 'https://factordb.com:4059/rpc' -H 'Content-Type: application/json' -d '{"jsonrpc":"2.0","id":1,"method":"get_number","params":{"target":{"id":1100000008766976857},"decimal":true,"detail":2}}'