Factor Info

ID 13221
Size 285 digits / 945 bits
Status composite
Value 253111004318047066559089695297471342342927409781053897458435232092096782943714955537051234100734694615295949567142993170303962615365279235434868951676512586730839572693031871804572248800417740753278867734868725174562941983319266717577633873206116975668839394540349016660662464941055423

Factorizations

Primary (ID: 4449) 3691818618067089153032376872670263730514071816623029355312994160640382894707 (proven prime)
(ID: 13222) 68559978293453482898997547120933454182173324919516603750935835063768166707854846158665714480307632553635187001536488440588537839339759528818140854071120345984367628434278188201055867065732446733526853467539589 (proven prime)

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.