Factor Info

ID 21780
Size 398 digits / 1320 bits
Status composite
Value 12794542117500012017500773066939085517616899470922001891237382068309215919177043063910313434701237827201501753307197178253290481210780482116095524532127223538518214040489108772404868379919171744428653735986691996454486614205471129042269813567527025080537671448070306499605317416194822914447099767938286787647717687082769011750734949522773349899274300875507462805473936673447028729378181504856957191

Factorizations

Primary (ID: 17040) 194043546506490017613781 (proven prime)
(ID: 21781) 65936447502891230200314148293594763411891826103461567354678790205073690861883823552480822735955930343738225761750614917768981790697955592038264144992690820306087224411763125058112602635009622977179429823410104928658786489476032145748693649814234039036553625431258684685243554082158387341781544738444999566027467835560034171994954172042365960814179689296014186106416389877611 (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.