Factor Info

ID 15507
Size 457 digits / 1518 bits
Status composite
Value 7253708283104780108075999995961776675366596253951810565431503880168856214415490705028072079400760405471887589523193431214348016930827706226387928049260399625684187675359509243388842513297004627547824741421027306439614559694567028527732268735775037920707140848178097329724962362266186478036383104889276615058102938947209242470085818156168950739316636852817501532087163305681691912284364413434838725141268523576069910351876546877500951109217260839417134956557

Factorizations

Primary (ID: 2929) 170141183460469231731687303715884105727 (proven prime)
(ID: 15508) 42633465546512515913410697324506707526191367495205772491878031968445878467445320195450855367887623735880359018549557980541283682593456138525280131058265180002394386794072092340141433371489332074154629127636117614678975004221915578399760023467803895489241879301298960991651452275370577100503399679620768491083689662568687239628845921536541673239540779442438514472311388676082719086276818127021242769103323747803215970291 (composite)

Primary factorization keeps track of the smallest (known) prime factor. Secondary factorizations are old results kept when a new smaller prime factor is found, which occasionally happens with ECM.