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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 #1100000009053987560 1,875 digits created 2026-08-07

Value

202629642615929023573401970477970623351045277036065569717855967528117620098319079052757720114363424561958109059972090461877727934212385387878004279165989189318318225659199452619760265954219772614517665458297003858551200962929770124241103958122839268282242523262319917150217340769744565958431047659168357134824961424908006302501999044319615053256495226462219156655569834414770552494719273965879152708026270445489108635648278181467877587948478010478504403601212495365447914374094870513004164612178229339144430848100435035470623620085514306469090937529002107860631024919637935455148955808644024236577863634731101331931700802782480509955217734895734751974773763797739230221528295691962022362772638836319931858975324310419366861698984917146687871857936152303494507061723707678510346443577257811581334067271857968917252434961752497394562536857035724036699460250700735221740608320597027521471255559179854481910236742768699080204154771438647410829451888786777587946140788124177313306175254385929510747377514989583168116760399484371192027826963802587035592138516596133108885087605737352467087080248281477578855232070817160947141287541406203196523278974814051426629253719724391637282637890662758642228278935045437333338104678148986939130878932003904651123310392063026892965570692674887690579739387665387337334263029259011389745758711587661888730549366333074383752630400135395866877232832321994235553305727248265016751061149468571863020002135172889907601051182069400620105423230186582962115133865653804172977766458663209926763081187614645405282143890435351470834818067531916359170748285706575166215662897157600642072324350726464481598782349400532511954938384776520417974186995055551459369892880107650122924546650306475918093650908288165482451984343122437284079397869688711400508619821330338741838438673531778887316567086050121347725981206137911260913038301491782628106617495162379841373
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 76 of the certificate chain of a 2,857-digit prime (212 intermediate primes).

Certified number2,857-digit prime
Certificatedownload
Certificate chainshow step 76 of 212

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009053987560 --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":1100000009053987560},"decimal":true,"detail":2}}'