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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 #1100000009070639892 1,213 digits created 2026-08-10

Value

1655322608914569214235479095930431173571512802238221566963402487522653857680043231320424477108903114278089866875384778043361861567989666884000841045454697737729087386027195479822593979684269151745630261505413322336854962498812274768916867791407070980591804820690726963013768936817452155652225309417187923174412234808949733926220896985687223507854310429340658918631953308026007961121549421497855078669188331652407123029964758091533666421720911975237307735904492378708517662199549097855564891120001891830566430883234943427130512226249928121325131265493835053354172171368289618039613532563503191353678168545695848487164983471697770256535196520502481275850025925888985757497032621191381883875530637353215955175208891726418957892851809073062859570624062578718777064419222638232198084432401139554724419573161246760712845970854207357022916088730795824704074922565456082011072649495995225543106519061674348572078463172982276227804075528877123953007510575141815279443569861405027592050596610041393917464606202044342809495050816090682365531609847712178153700340697596046907617949459828484008090500789250137179340850241345556411945519102457606462743279067547050628078765567814556057076130899016994000889571900904309286541771
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 63 of the certificate chain of a 2,003-digit prime (158 intermediate primes).

Certified number2,003-digit prime
Certificatedownload
Certificate chainshow step 63 of 158

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009070639892 --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":1100000009070639892},"decimal":true,"detail":2}}'