Factor Info

ID 137310
Size 475 digits / 1576 bits
Status composite
Value 2151986317722031562226880110592954566076025442352419952349707473499892490065387495795682054330044585972063466543902490881731887249021841845285939497024687062949342930280698879962570480325697278198584125825681554857820008143313042163467953980242063108692532861354145542337786563888267726214281690581049234959602900040919762478130061385719002988835647136429680786891513869305210118768092666319181254892368863811497989488195443355068886744783318325831463518225259332845308376841

Factorizations

Primary (ID: 171398) 1267250942525134477563184058723615679941843491566608966541767971905137 (proven prime)
(ID: 172199) 1698153258764965856196713133056995227483627650714632506943801263190456128550490126438462526191365738112985139381035848470280173180619552620905349304022595716522006488211754973510887202438734976732626119142867455031396567017583809324876583336835515126435816177475060846856643185960073861614256201353213896618105426945832726557018587254169276562812986568192047368124095021608583749180578651790536967975034393 (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.