Factor Info

ID 13657
Size 148 digits / 490 bits
Status composite
Value 1680947899526078304909325760923882247693488338853963842014818380761869247878325050829039613224247159333345732650049885061891981396114653838640646527

Factorizations

Primary (ID: 13658) 4279318502765963680153103023323603817 (proven prime)
(ID: 13659) 392807382399694566295020889337701342463138881020587999474531063016522834392062054165950886788133886935559614631 (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.