Factor Info

ID 21863
Size 291 digits / 965 bits
Status composite
Value 251858037330596896965905115120079562962027837852823579081191589837695783963864361592686262458684430409493332555934080602642937667767227378499287566456237922874377190220020405466059351667320561892196433560952688508008890245195513662296359805360720120806904851699249613823301246147775205186497

Factorizations

Primary (ID: 17120) 25896916098621777025320461067950269867 (proven prime)
(ID: 30604) 9725406545376291955660368631533564457351221407735700072823356511425343428663350108077496554329452710446059422541836324500203166625366471959512580781516714958070631566411327319617445169266457487049266031193625067333729187500752516024573370272308976205891 (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.