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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 #1100000008680031287 1,531 digits created 2026-03-12

Value

1941447709631974083685266677257571097237768647492715226072412879492479678720224571003847692266790983363550074402630616371206229999710275794126108298789221201202015579943877840837608344237040506886514876295402348282468469015326434229076450170926236547159438274456030666828158808374759870589844981950317477374129576682047454397222678065549009000908772621692799693678065769185981554948931707257639341688454310394870584255331548900384458143128221596679128020278211086981624614346239747346459881233350273849040262401178645996037534112836100959487474658489600810152555469295236438009834799678905380904735551801220619831712931048814343082779473215537342606705014531460972278253813522665686311458140489855696145206141586067165437781173729764483730519098878798570619649012038562387166288898126720071035520031933271218302112405368687490792188157291149167106923057857588387369423489320831302011336591645922484190894101950443738627059169697268818906890468601270142121548658111152010844768580634598291826755690957522394153297271148847407549770906814297758109623011864073349738124533657584734140984999950765152399891121115516808930189378365654791940485912916559868652251359847383425723314322925398253853074498251979292809523528214341352326402987459844699110754818115720266156702056102593489207257696173837349547800177941390496628263500136579080713990046900435269514523672781850158408778069425224192754467827728454698176161268810035219340670079918971510515948029139111035923482618288841116788279991783413274776611840702629245134516752836460859399
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 44 of the certificate chain of a 1,975-digit prime (206 intermediate primes).

Certified number1,975-digit prime
Certificatedownload
Certificate chainshow step 44 of 206

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008680031287 --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":1100000008680031287},"decimal":true,"detail":2}}'