Factor Info

ID 22182
Size 478 digits / 1587 bits
Status composite
Value 4000402252235789831639836436984564772067054089672555608151683785682628841673464641587110419232046761650822541504947385932668450674499955148483176450475678778372786805954306888945662630746629019136585315974530411758867270365224321029396801397324322628147042552629065478414090696842218140405860698613361266632218004074954021505788331360324531260353546072628128904120437941488690667478625428806234304124860544370775261634371603580846616222545120334900982540577749543297200540502937

Factorizations

Primary (ID: 30987) 255723355423537509311905247 (proven prime)
(ID: 30988) 15643476309037908714791122818028974742473655257090944009516158348062825340822205704244533683377167428682695463506523277507774615648851225656820917705791290081519864930363793713709955709521714789381203100257015226503017885926904278790980460589147298106147956436904204109579501823935898237758863287179247727661498907600430876577667774625395897455498257470587771353708373613525499598997408675368815816922450949936844941865918919287873605279412192310523271 (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.