Factor Info

ID 143573
Size 270 digits / 897 bits
Status composite
Value 638599238706848450445483963886386552803620033575564085949360867247551607687656877419424770351357512394563008235750052450601012732899436642095848255676861421988067392309309353558655605955713937378398919836983154605309048800593732317292006571883000958845116114779505440199

Factorizations

Primary (ID: 143134) 354144330352436217335570556313 (proven prime)
(ID: 179376) 1803217456767779709896188230149949446164926238289261639129623792926883499217893998315523900981673508483095494484924725083648520517166913628491915059547421782315676163702816016084845919643135503282540628500697379736553980967100356575807165023 (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.