Factor Info

ID 18390
Size 142 digits / 472 bits
Status composite
Value 9566816084474687121641190634487446461489371675416496877006050535317723004910157983710372737316922841865262573217850293429839282326778850755159

Factorizations

Primary (ID: 8173) 169002145064468556765676975247413756542145739 (proven prime)
(ID: 18391) 56607660694633626897321459102636736165609722758555644341449725283330205222511426587334862046847781 (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.