Factor Info

ID 18920
Size 257 digits / 853 bits
Status composite
Value 42831576498991315421162561235726750542284754600246150443448561930591568860757667365267981670296003343938999076528435202411298944546198137286546765590562630631001783299188863858393767692914520377795315634498678076150451844259857303181397027519018818933889729

Factorizations

Primary (ID: 18921) 525734876467633171387358753 (proven prime)
(ID: 18922) 81469916522892576723213101462509887063619240200556335754140355198438967659950708866106109194428171151109616410855714632948959444820567444743277107970728123334143406017021940878750690728920735632074024445309607970112948868932216993 (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.