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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 #1100000006985328562 1,945 digits created 2024-04-21

Value

1581008006923777379885032211701857547601617570989160270921942520875725733207983603404468179451325913635656755693686060205887506228258027271739981028343283878968980688419591073629012805202623255508546764903228652609576718324015336204229553613041155090541472502245607705329400668817092632231530712190905142272929546396796866763690528900191184156279353621451694685069505035969037454539822684063041629396141478855728926880523467004916816070624055707536411049389883566201623140549092877756231694964524044701101904548223010822371496770181787113569681326287518566899203690255149614048403670320647944019513082382950224999812810732108170202209334508623396274469785941397534805942083265911884433574624320122870742184586854794004928295677254153878860045450403987568007842445546593066817752819240610350436913345400246709863521880437272448335811164300902068256811580452369427485013583631506636129847822728881177200156534127259920413433834344227666528961671315473186251421335333109803830977652847733182630087724804387079860253277109822964018131919007106698578501659581545624612447693284002000420056883042375012237018961874154076840807869540449901734036027790901243788972682298336389870116535892669502997784824794834617752053544504670168810143664813525924341333723288038397042023646902942783430916876150373344396309399597699290758070319939828906490855157924935341867402530784551719646324842914778623594001709107594057161125900915572959794300833522229748519278082643217761393284559066035173951295807966104306368584846264153733255051595154568416245458324965654828069218647240696576446260082327425658270155246143672905446101979017053406991108005980910338931039768084008037614839892964867973308245338501731265663131881069427689690555964474297880946660091409671149679492464156225794204184190721317008059726072391692596705671378953542854974919386400861379056101940381630936101848361292480352511209596734392756085446611519641759577125142857958245122464276211000226607
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 95 of the certificate chain of a 2,867-digit prime (317 intermediate primes).

Certified number2,867-digit prime
Certificatedownload
Certificate chainshow step 95 of 317

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000006985328562 --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":1100000006985328562},"decimal":true,"detail":2}}'