factordbrpc · fdb
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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 #1100000009071886872 1,579 digits created 2026-08-10

Value

2517228445472325300434377224099425575118172204421463078544268657568137571758288733451000638904636271000657361382955221766808443828184018979595606171144656566467855507126174210536740466768300078286437475849988623664267672022297515927695856937462748635110599296464834998640235098623748493001014560458831271843319761741159908132859792473842645645934774878463472837868128238915485935607560480525258206902386616523649501504196145862606090910895289736008076322385878575642120559731939161239783889565471744762659899853654758296272145861313324931530913013286126014826646752159061695712043846752094288119816861146113837113227118004860896430524407136461973592258046613131812550574151363812009484659262629080463464148594946154554697822722843582850405076605254420153785539531945801994781036477471143321047549332411777483688974697662305081480286448936299026406412698127362559565848719199584046030835097817097327893758603782493989088017826214090296626316177417563573884896490907614024415032846306526262762492001830103019848708811516998098430659165796815767262160495682843047925576719530548963006788071459895452053139590325085676270798121039768140099961804784020304366663219069746149947267582444808146369073336607214873353875475098424248604578248781987397636674130054021340639973718583669666545013003425640420420889354955925572214734115433496763025489510019352610881020495815522202134199943005348289567093531514107576619915172854489441326404101974994959349268689167056306361485091186569475407742877869620127164951971361574971617237421863721004755175235537329992180146839411969532200372054187503
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 86 of the certificate chain of a 2,645-digit prime (196 intermediate primes).

Certified number2,645-digit prime
Certificatedownload
Certificate chainshow step 86 of 196

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009071886872 --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":1100000009071886872},"decimal":true,"detail":2}}'