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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 #1100000009050962427 996 digits created 2026-08-06

Value

145895876676080857628275871880265028100437919113574198502514128821247259794133275848432442406952097214725328157176172420499838783209503148336846121392461225777557219288246464003762851447799267391724449899244298139484761271716995269299186576762269098167603137002037736965735947884775940994019243735352300827788134382604058156295422827837860876221545720011003184081253489890662508671012976396008241718767523948109937975109919601513451584575682445420473358005046860184536643150316273768012886403257526540559359374304470390341746144326127760934160994335751077189921041568983341705086591611032525426386891064554173892725254963646697532580919206711972580515229382158727918835863616737005265439686662653915021366203460144423710248129025604515687574935150599590811210479657037424754259256505570075682445610154294068125871488505231375465388998934840866531515731194175824803334895600830965052926672015370461953920297187587347846305030226647157146584498319228200136102973320721232669638287529138044554690339
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 42 of the certificate chain of a 1,548-digit prime (121 intermediate primes).

Certified number1,548-digit prime
Certificatedownload
Certificate chainshow step 42 of 121

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009050962427 --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":1100000009050962427},"decimal":true,"detail":2}}'