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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 #1100000008799243772 1,170 digits created 2026-05-10

Value

265960392893317876029031322774139294841570632220326760015580447978748451650032686411089427112460645316235598771942163112012201378037490934481771743525818040673598106176649506238882573293597293334468084137224069168598787236885450879998216448386174379855332998263996575595770455955718861969889746776147913700051521403973324125646462745261356476372302517825121008781554271780792285402626564186394875646148264853226346546202065478196446191498986579461494475754293883500967709322878695260486333444532390533430090623665362419866929100805227122062235122746949919623265590910236074343747127773470431994322339610841284558345175744264927335965805869074790712347302274662025035977858959441044377298465467384327031049707290269528437698357052466972195562147519399210503071775128990306678453894573981895788856475884456689343865721133797832364163677819724673021148203167070437815455661082824489157464260775875963959400606734119242547660966866905729283376957790547444528333045965560523310620678538161113411076707345132572104260343976611767489066115913277832717647642732491721793533257121100149623204636534985680265261243581427262040917291980968843645040796174332350252028679391958191687
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 177 of the certificate chain of a 3,883-digit prime (240 intermediate primes).

Certified number3,883-digit prime
Certificatedownload
Certificate chainshow step 177 of 240

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008799243772 --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":1100000008799243772},"decimal":true,"detail":2}}'