Factor Info

ID 21752
Size 672 digits / 2231 bits
Status composite
Value 257077603619350229369396467813170930020214851413919884609240097602133662052410833775237410391413560064271756838009970178102277131473506015467748232778047681213411971663813297902431588893487491390847892118898027817858705901639548609732947680606568480419014794118403311823181044044218449025803617197138253202833652054005899991246874051659660746697037629556467415379164520019928013120879352318242172042393250879778426484144736821123542501595934063622983298953125092743451042809733048492650959882293719339706772655828185524347555770087156491164282351182786327182655392332983282469329435062202752077934562849887928530996179384281143016082914968460189585857880668855755753211689

Factorizations

Primary (ID: 21753) 1319886717477995212661 (proven prime)
(ID: 21754) 194772475709557366825214544065582347710403287276417085774396528908523833070623098005658661408000292212333904012783002772177837182477083900616738649203036340225059434438588160241781002857172200599351904444018632088684523739291840356652851691503329637634944982318133076503254286015022631918412704211318043177019557597760154206589663591870726259105417393570797213138499197402321419082952182500531323983585250314139425563303661191241330791245959301133510525093693924148953336717389280968009719632073570951967372084891486401932276421482578115647391090372922490173081753080958831414361317866424946024273499816742129179307272943046239994100612000721895413349 (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.