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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 #1100000008676371245 2,109 digits created 2026-03-10

Value

605002061095256848915830169640380119560833010853434423702849636623553849649962942076889031185436178641440012014484436710026494774810175495840135699726112822920333563414801731732775268921795609670704817169508714395672240381558270560606230172932903547006703737509686530096591912888444128840664345568891464722464405352065722573029569365967039317492541900296994546833790320928236045572381637098520127842157967324863949973956384349175463311363294542659755113321346491443702704918387690459361675174645588153851430879702473248060122861022962231669508524575730455429268801789311385897800467615754215727155008899201270352786532496256703890238474812352535714834774688493800481988058214547976119777596800959375564947232950842581766162874190995704081924272119141878356723120893158556021538617123670842515372087868071517170164054793009418690150280562434901106068646009899700982356164025415345554765631200983994862157315419990727700663091179571036367226969734192474371201119694214473297550497302105831884360821744967420303217344819199561021950227179358396352801094385206165076864140460365204413540819237128449084704331635803410089022121198472271519322350684246290765732612525072970616077612504762662142630034380449676652631290735686542834889045574879555878938250523888841916247812792936417289372713617448950664108396820339367180853420982722228446599832170287840991846409084552468095817813971676547591260906308108967494732919011514599715952357928765902934657562934127879146090510535270413346806203755818227885033950418838044622714181174751718022964517239704052668449424557507230582404278145374128954036498858450753008139867924170566900829572420237177336662005227345295484382177278013231682277855041666830104935945227909772207287551230105268796400966762925757983787576614227661254248042001268053163544279119462957085635625791883621603979950378840410436769372412099638962508984636040916721513807897517137907576991246249648917087930807721997555971461575279382264607555293694143770399813393151781761149236475872871640370996300631197341193587417449401190341545914467071237492849044007241247248312972818182813175436201487080375793
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 61 of the certificate chain of a 2,921-digit prime (212 intermediate primes).

Certified number2,921-digit prime
Certificatedownload
Certificate chainshow step 61 of 212

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008676371245 --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":1100000008676371245},"decimal":true,"detail":2}}'