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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 #1100000004877615905 1,755 digits created 2023-10-25

Value

805238081254701187172190850346830076766596622020957499366875603724482190071021610062539639991351228208332416331587712022452672148788209410827576163077763945206142708958823714825188344837024214511897449295088897661222680125009438269492069278535307432468962052835610496988754992431123535660555473791581167380140949094864270702470244988772342520988064381690663900528001668461014640797651348793523329704931598534972863321960939172802686257053024808720119771048885512628580962596287309353557927506298345780718944101097411284181384222561897807600419510818704118484857430873198480568929110780007931200182366848268814425961947149532997813335921552074734427488784879389424727812323649465216141324299604134975090039596746410586111454422621105153430417918628363717061809490328883838392682501735518559375377027106732482968829258849760081160172468158738645063089208191770884822227578265164586858677169660952780332684163775078168645492754634034837939210250276769268022210747905235042925750780340397887011020650129588092101382173893697055357637047972030758663249371803249856486144995186309828432860105561016235899809623252898567803546901235600251449504683932595214483838139064323606863872449229919785021165108011343967319056990253495132570148492330067047974853796197997216788216048557856092361001117423486192100665982069275504363270265609242831333777825008211969524415588368213884606204138867448986682586776566345204182683918759660359912781765648978700200941361468795390131002066875803353713617325524125150965649038521388916126013949876027703191141145244897487170080272713303863344160395026676744012566919793759183950979608862185975831860996274615791084798659542472799255022950122259124565592974081335701236202819431114975183599621471262417628874227002639106028930931273
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 72 of the certificate chain of a 2,457-digit prime (284 intermediate primes).

Certified number2,457-digit prime
Certificatedownload
Certificate chainshow step 72 of 284

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000004877615905 --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":1100000004877615905},"decimal":true,"detail":2}}'