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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 #1100000009051066975 1,293 digits created 2026-08-06

Value

571842070488386049024065908865103080202933938778834724975168826680173618847536997958033592694173318008209763671886168970553672455806032447898649633300650505123021457178039591196658786541533833657796564249588254642667548351845182974621190416124422583279377640559842419662484558934482406279632039097955791917242896544932743324846440094880965847139346514169687445904628451712165809458623266874995612756277821976926729893586490570559010005704140194721721218350108907737417751276779661663098397025250478788482645009923225861288616946444241185508780874786146711973179425576474371943851686413768043056494941299799595169802351342115212939732538487076368574304622367636461000700395075259251960793010111091006760294843210662160175018566631730838300208468242724443914384562444899031566562813994250763133757981916168770104623522137366377832064987486599656356782137867321859943050062126489891705294132452017401140491336214418113576214465197581435118047263207382231110530365238106489768425813517646153402870849230857935463390865474617610066330978602321021612061203169691515213525139198260536845038310904445527600719612008101535633358045529079676786466837853417697503798255274982677516500870597281038356530627512979636299552014612218263610774175630296906798619579609118568935269349564794412487765020041113827
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 21 of the certificate chain of a 1,553-digit prime (121 intermediate primes).

Certified number1,553-digit prime
Certificatedownload
Certificate chainshow step 21 of 121

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009051066975 --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":1100000009051066975},"decimal":true,"detail":2}}'