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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 #1100000008946988477 1,522 digits created 2026-07-07

Value

2627578380943597183433688271656070175531705398560841238535352794953482878247906959146102152285504484152526226834057100054026811361996317305590522952399963322487351079191571483387294532273036275598336124977908755455800323107619049408054783651966182634974089175199981533235458802172744045550943188606766564367792620372273951919617879815990093614020698998892732251218456572894205841307026628563274899242488558726993564042811263603467399024144848905011036774850693394990009082294413091374614512742474746111669527622963151070363180924263425868899953972513761025479197795496902324507359977495066743819176594380383331317590170185451891115767929279982721053437694202282870939328086600305197041042299329532370239721944818314740093521130322828262220195609831542341388799415634371833808436759642861544169614803394424961052588303688374987971830259465035706807184598952160922212285406814943314335704488573426928619874186216713787693099252262389669952171862521365633252673396160355903086299427370594361786160845398988666712733363071458912093772425090891981379453276820753577296455181063529253811970766584254894421220861544868197709443072840355743727647063023555346646594731839780416952454882678246501824850040614391058434859980089552760025256760572299869711993749935603703888571319647605295746390791094692931390066868003290043403695298834021639175661940607626701618902115811187248312119176220084665068062883248741052932071433972143668895590303282000786750473585758198426845008680135904316295846187551975273863911697271349666839571300657
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 80 of the certificate chain of a 2,616-digit prime (190 intermediate primes).

Certified number2,616-digit prime
Certificatedownload
Certificate chainshow step 80 of 190

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008946988477 --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":1100000008946988477},"decimal":true,"detail":2}}'