Factor Info

ID 3887
Size 147 digits / 487 bits
Status composite
Value 257345241431347222428354858873718635410210009944147603344756442455855937965327115931508877506851869684216520254423410078203665743251024776896459863

Factorizations

Primary (ID: 10948) 42897689055449636582684640379732099 (proven prime)
(ID: 10949) 5999046734165615802201613005476659667976539275714709227667075221483727405419928935982916812385412820873464007837 (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.