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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 #1100000009053828753 1,850 digits created 2026-08-07

Value

26918985616902922634049638001690208641168773455960774560038318493697255112610439905560619833415512486976941022422851923064118237168385825400007745023332184933860700483038934707279665419319080509885802048929942924096451762455589836890078630372134616058174387455707906042752515553993918830158399480704701240469775082242329766932521408514584285840675141323251322294883916071234930619817023995936275208921547785627171443230932033360200303332179350803708598052488197153322668497657082531576736071552815451728587682650753987040911094815803737934584483697005595977484675793228090630124796273876502234357950259230406771121121827751044898675292905888253002895565752271029479196212298617265471556878517248726504030915597422974930432191235970671969640080087478320989582337486749723753506753107926090709919719604751263447769814263288987300658771390495506716827696197239123376637510161041359919809658831725748720534401648039374873543881867040951645458333981387891898092731683317947269073468630952642062630495710285219607158982892015215487482870281804189013605652137828889301608432767681575446577486582639084679820089515784160774701006893165752469929348663176774292864667795583316501555457503767597518190510536571181953998911664826703445079380534215244023845204549062148301036834807420287844307749816222156914766146255282943732745751100174113809468432755475107810719682888537207610092180937097063504952527234095948917244195523655855652010450727775543509078833664898724757860189998110963784911286787966556686180109527457894159019434317059054339508417147636994700155971460499204325601075427163688771096136258846713954202085430650835157297361684126677163976762386235551722393823035107962700906356300566070579662356621338325200032555512804857655102086943055047169563157330239808089026076723902041765523520828570724254482434488498188174970849313475243762309397630893563
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 62 of the certificate chain of a 2,577-digit prime (194 intermediate primes).

Certified number2,577-digit prime
Certificatedownload
Certificate chainshow step 62 of 194

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009053828753 --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":1100000009053828753},"decimal":true,"detail":2}}'