Factor Info

ID 15517
Size 262 digits / 871 bits
Status composite
Value 7995257489261908866656777349164409906507842333842452162922775068348248164738374794286860011140142183316982194901508166132638930606897592623292115813055964410348393135109572755200659524973029549070885217225092483563858960201698221298076413842628408878529757582951

Factorizations

Primary (ID: 15518) 63643804696414042988834224561445803731525698977141 (proven prime)
(ID: 15519) 125625071087436024564084043622817494605612102976819084453476204338113039046307051343226788377376804301867064898891649550235616893048014343747683931353410610157279591229584350612972237658632200403943619124951858411 (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.