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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.
Exponent Prime Factor Digits Year
17186423343728478 ~1987
171869931031219599 ~1989
17187239343744798 ~1987
17187479343749598 ~1987
17187503343750078 ~1987
17187539343750798 ~1987
17187851343757038 ~1987
17188943343778878 ~1987
171890594125374179 ~1990
171891771031350639 ~1989
171892314469200079 ~1990
17189351343787038 ~1987
17189411343788238 ~1987
17189519343790398 ~1987
171902411031414479 ~1989
17190539343810798 ~1987
17190599343811998 ~1987
17190851343817038 ~1987
17191211343824238 ~1987
171912891375303139 ~1989
17191319343826398 ~1987
17191631343832638 ~1987
17191991343839838 ~1987
171923411031540479 ~1989
17193191343863838 ~1987
Exponent Prime Factor Digits Year
171934671375477379 ~1989
171939612751033779 ~1990
17194379343887598 ~1987
171943911375551299 ~1989
171945379285049999 ~1991
17194571343891438 ~1987
17194799343895998 ~1987
171949511719495119 ~1989
17195063343901278 ~1987
17196059343921198 ~1987
17196071343921438 ~1987
17196551343931038 ~1987
17196659343933198 ~1987
17196779343935598 ~1987
17197619343952398 ~1987
17198171343963438 ~1987
17199023343980478 ~1987
171991371031948239 ~1989
17199179343983598 ~1987
17199251343985038 ~1987
17199659343993198 ~1987
17199839343996798 ~1987
172003211032019279 ~1989
17200439344008798 ~1987
17200511344010238 ~1987
Exponent Prime Factor Digits Year
17200679344013598 ~1987
17200751344015038 ~1987
17200979344019598 ~1987
172012571032075439 ~1989
17201291344025838 ~1987
17201531344030638 ~1987
172016932408237039 ~1990
17201903344038078 ~1987
17202491344049838 ~1987
172025091376200739 ~1989
17202791344055838 ~1987
17202863344057278 ~1987
172029895160896719 ~1990
172032131032192799 ~1989
17203271344065438 ~1987
172033871720338719 ~1989
172035972752575539 ~1990
172044171032265039 ~1989
17204639344092798 ~1987
17205239344104798 ~1987
17205731344114638 ~1987
17205803344116078 ~1987
17206919344138398 ~1987
17207639344152798 ~1987
17207699344153998 ~1987
Exponent Prime Factor Digits Year
17207951344159038 ~1987
17208011344160238 ~1987
17208599344171998 ~1987
17208839344176798 ~1987
17210339344206798 ~1987
17210603344212078 ~1987
172107411376859299 ~1989
17210951344219038 ~1987
172116295507721299 ~1990
17211731344234638 ~1987
17211839344236798 ~1987
172123371032740239 ~1989
17212379344247598 ~1987
172124171032745039 ~1989
17212463344249278 ~1987
17212859344257198 ~1987
17212883344257678 ~1987
17212931344258638 ~1987
172129574131109699 ~1990
17213123344262478 ~1987
17213291344265838 ~1987
172138811032832879 ~1989
17214539344290798 ~1987
172151295164538719 ~1990
17215151344303038 ~1987
1315
GIMPS The Prime Pages FactorDb.com
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25-04-13