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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 #1100000004925920506 1,505 digits created 2023-10-25

Value

12781060687779396269720412306946712432788077723656980987530582817499952885598664628806210739975494476276875865031200991472656264371490020759448930033166003327622038325851834989396198647061167578364372679032495564538381054579925207211633792220466795904601878016641603709098756507683994780284488423852818852555102500379087884298849091641373123204134407565317520276402562325054839246138358753810622954137058967164339139699503842737158482996613547586802683918934842163744847262583916587688514365748753539870368192087560183542739852127094263341244443907559080604550249554177551237539107949449190730832994426536001551823584764464792812403026402664642626584831151188373516633563528989058221824006745126356811310980779993840883891584999252880027192429693594335160751405677138701485544328551243648163067222378961702605603603762432349233788354102863131781791919844467567903402634434998157961096437580600192350608447691132244405887057727943264116924840874357135030995546437699196809181190175438901820958440724954805142006322209225929590755581129417432058445565106028848316904941448205446143838023573105815215069454852675830323837521196547736171344793045139608248023116390493894979730517349344677775509037347908477415966776659972045453600087236357297493133658912534861555124893292473550277297193493908264681695043307811861085794736045436698293434815363311102723333670192683232478031894704963026795596716086066816468678823463773185086286186083590316792065782254291354589841329664247962471408543150658109302428683898419
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 52 of the certificate chain of a 1,867-digit prime (275 intermediate primes).

Certified number1,867-digit prime
Certificatedownload
Certificate chainshow step 52 of 275

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000004925920506 --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":1100000004925920506},"decimal":true,"detail":2}}'