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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 #1100000009055123241 1,687 digits created 2026-08-08

Value

6479959363208941368787906406434456826892369992553761952018613811277820381183584614793949398127502859590388596364962721564413270770114435663893360430247743874123537718427890328250023572720844695391347749120392227004630179366700877253306883109204198013524982840404373611871552040473623510465916409259348604096029138959734463221816079572313567336127581975439682192925140519165157587049124717865171060400280405715544150454840870774466934520220851275933965785784985626090363060922339153291145741382010843950543192405130991426681117899430811715735237797760462378237518402945010897136348125020226189366609774668511228857833114437872064766056927843728035098055841535218643941297183116063695145770300496951306052949493701250588237329467342639582020659882144165689905810550807033945773739178172543068376602446689428108041019682131634376121399076609483899064718037522189384314808127981966644811662199921533985979131560447595673586950859761811384189763873096407949482767235248360012423921554638413014464895696447343873785288813510682157622000356560402502200623677353636643106561879184928849110696808466910266832881482232555086878530870035627003580904341883508471232814106622832230332709154241327309290157994507982403213944466141555261535764918059727274260456181162701583707852872620346098911819658166307984956376480404049481563806594960734796725724785325042689359128001434016336221762486491058275958070551268219093019987968363987817763516849436553400535168956144139040849390417958757728143483819520374300007994707539924447053311222856287600063586580094814064782517261301839873595295897157212240293157153684522836166378603392849221612324312202732865889618198973673715218121379259845953343373153315591
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 62 of the certificate chain of a 2,419-digit prime (185 intermediate primes).

Certified number2,419-digit prime
Certificatedownload
Certificate chainshow step 62 of 185

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009055123241 --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":1100000009055123241},"decimal":true,"detail":2}}'