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Small Mersenne Prime Factors
Prime numbers of the form Mp= 2p − 1 are called Mersenne primes. For Mp to be prime, p must also be prime.
Any factor q of a Mersenne number 2p − 1 must be of the form 2kp + 1, where integer k ≥ 0. Furthermore, q must be 1 or 7 mod 8.
Exp. Prime Factor Digits Year
20339291464428899 ~1984
20339392440726819 ~1985
203402340680477 ~1980
2034047528852238 ~1983
2034211325473778 ~1982
203423940684797 ~1980
2034317122059038 ~1981
2034491651037138 ~1983
2034521122071278 ~1981
2034541325526578 ~1982
2034581122074878 ~1981
203467140693437 ~1980
203474340694877 ~1980
2034779162782338 ~1982
2034797284871598 ~1982
203483940696797 ~1980
2035081122104878 ~1981
203515140703037 ~1980
203534340706877 ~1980
2035373284952238 ~1982
2035493610647918 ~1983
203576340715277 ~1980
203582340716477 ~1980
2035853285019438 ~1982
2035927203592718 ~1982
Exp. Prime Factor Digits Year
2035949977255538 ~1984
2036071325771378 ~1982
2036137122168238 ~1981
2036257610877118 ~1983
2036299814519618 ~1983
203645940729197 ~1980
2036459162916738
2036501122190078 ~1981
203657940731597 ~1980
2036603651712978 ~1983
20366231344171199 ~1984
2036701448074238 ~1983
203671140734237 ~1980
2036803325888498 ~1982
2036831529576078 ~1983
203693940738797 ~1980
203707140741437 ~1980
203708340741677 ~1980
203713140742637 ~1980
2037169448177198 ~1983
2037349488963778 ~1983
2037391203739118 ~1982
203741940748397 ~1980
2037493122249598 ~1981
2037719489052578 ~1983
Exp. Prime Factor Digits Year
2037803855877278 ~1983
2037851163028098 ~1982
2038019163041538 ~1982
2038021815208418 ~1983
203803140760637 ~1980
2038031978254898
203810340762077 ~1980
20381771100615599 ~1984
2038499366929838 ~1983
20385491590068239 ~1984
203870340774077 ~1980
2038747326199538 ~1982
203876340775277 ~1980
2038819203881918 ~1982
203917140783437 ~1980
2039197815678818 ~1983
2039267489424098 ~1983
20392671998481679
2039407367093278 ~1983
2039549489491778 ~1983
203987940797597 ~1980
2039957163196578 ~1982
2040133489631938 ~1983
20401935712540419 ~1986
2040253122415198 ~1981
Exp. Prime Factor Digits Year
2040293285641038 ~1982
2040473285666238 ~1982
204053940810797 ~1980
2040593285683038 ~1982
20405934407680899
2040641163251298 ~1982
204074340814877 ~1980
204080340816077 ~1980
204085140817037 ~1980
2041033449027278 ~1983
2041283530733598 ~1983
2041297122477838 ~1981
20412971796341379
20415613878965919 ~1985
204161940832397 ~1980
2041639204163918 ~1982
20418491102598479 ~1984
2041859367534638 ~1983
2041961163356898 ~1982
2042017122521038 ~1981
204203940840797 ~1980
2042059204205918 ~1982
2042111857686638 ~1983
204212340842477 ~1980
2042171163373698 ~1982
388
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25-05-04