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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 #1100000008674994979 1,957 digits created 2026-03-09

Value

4071747422732457808245281855540206524533656912186765461692627196627718934637353557139000843452764910192472817631326805119606518337983885421427581667718264842277644181027703486136913979200637545264535546338498923629909058321540045634373971924290210003192824548847057667881590917998930684348678132404234074173742156345079659933320023181751483534508253674176324345991355667848339846855185020075027445705514062999934469488309233560301327394527647902046679054625202011885607708626681806920886499068172774504904040086620525286720131292691573169622940475508915187408628663865097884456074839317531921975120975525485249820965567868376055803772031636692223366752931414547420668520576524805734694251611914152809440326884852901824409551952181271691094318367277754585428953415117919298441394593933597921277076079056732805515107429719072657291523199468902462010130974504677482365218666316710086258521815506190557203641801357125612543305254165083348347152496654418637379225234574631952827831564262774104443377752668392031999247247998665251258409922604586354310431768922769692666835100884679764490513759107701741688834190537693595128827557212046455246255496287796356491532371123341495870642033159704479999984855420876654830318476459916944715715001229651054527690954188155507077859286798281610133847203284260099235558774239750240864019556534981444789415317785671080399141771683380068266322568261399901393990145971030983083853573236662253342422351219630933789215104369711479839525933722368506991736670847481657293390755285476109018331055078984099263024156547719887959682078713507821578851266600686717185728947806205074097970369296605144274080572640397380922293695835877415801404470514123200944752355019920286936206297601622035385848943936376187745611960632282711094490493959052808442825014689943481247592328562061318214311486988213279236802188877622701810359437963054536276706782569632829133700037169492446159116795838395365249674421465184086438698953519516373430996312856299
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 67 of the certificate chain of a 2,984-digit prime (185 intermediate primes).

Certified number2,984-digit prime
Certificatedownload
Certificate chainshow step 67 of 185

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008674994979 --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":1100000008674994979},"decimal":true,"detail":2}}'