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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 #1100000009077203538 1,056 digits created 2026-08-11

Value

109801953316593975926780835729877118228387154977821110023524629564354019719350657001202079492556612647158101522275404576209824461775011413037251892485063167602820873687852177200221361236424105137804507413212788530392848458508269292025021978313245103320198479030318298510953031584896589511292798451326789111515210583169866522004717153723025260768867968537911383537514405471994082155561884051169093961606893674114254922583426845359507154261246894060704461431128648770631225363445727434227946517258778036516745839518157795146918681320027139811251527613934366004909891649469537509405466929065611305979928173140235691265344326777524161065415404391528475927026938166504251587172894755414590970960226195624542960048300725546701592887666884575616276083676179944410998880594958381846696777590177151406591142253843980963586576104942337179129419726378665374392353663363935669533685692007985841913178510140320169030538561228391212784265615465294754731974538800725394119969022560064012738495788959400488407652560921131985295674179263006727235716240956357191865331723809
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 67 of the certificate chain of a 1,828-digit prime (145 intermediate primes).

Certified number1,828-digit prime
Certificatedownload
Certificate chainshow step 67 of 145

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009077203538 --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":1100000009077203538},"decimal":true,"detail":2}}'