Factor Info

ID 21239
Size 400 digits / 1327 bits
Status composite
Value 1603310194272722739521235448998354779224648951805149611129231422040799195692167111542273529202890303152443509589677425849298919401799165092139177266039800794882126272564367070178440388579718852800267221969149659040243879945063895159719231230129031014949311565038428218885873036027394417831079252299489435866791000782962416063261953514915362720514989346398042699502780117342673633786180132069487847449

Factorizations

Primary (ID: 6692) 28870194250662203210437116612769 (proven prime)
(ID: 29614) 55535137046608101484350293680061979845661627105827252848006523186422525316767121061263333890327209144949894290977073615157116190263919294499031611995727135828373596202889627317944575963481429987675828436779134165089802805840833385352222462517110533860821580955221423647803787585684392548635898071641812005369098479350759964388162784240395014069194687688922674014489721 (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.