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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 #1100000008766977842 1,102 digits created 2026-04-21

Value

4391854181273783194015356822366656893166876088727498675879375578570125497753505268813376129939679918147174380480183781205608847084027570721903798283837385509288781187147082303357414653350860164850019394227734933476192900506689096790127632326593787073501175933255729753941047282026181446457637463959495004658088701904535126520352433832413172506648672263476937863568369546896830024534490277813788825979860981817362061784454217655691125252552410964734932244784691631427495004606199412206551377220464332457254012320976961400770542109029625991888351836618197024773420439247683666989887324234389126808254160575771017874046043963923641590592243191054533098656415299664372161287653723308068687370102750801451184494503019632234714781078320543172086884053979870689496668117595172043660282346313762614010742476491027456897616497684938188878761892539896803526036436210611789948887826571990889426506159747023873122312272389873380855823786835810959075277880290018743095906279009856500676900829553591164904829482895278059775736135082739474645530455095515586439337385437813767708713212722911606213583209132414894031293
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 136 of the certificate chain of a 3,124-digit prime (188 intermediate primes).

Certified number3,124-digit prime
Certificatedownload
Certificate chainshow step 136 of 188

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008766977842 --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":1100000008766977842},"decimal":true,"detail":2}}'