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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
1319477105558178 ~1980
1319561105564898 ~1980
1319609105568738 ~1980
131965126393037 ~1979
1319707237547278 ~1981
131972326394477 ~1979
1319743316738338 ~1981
13199331055946419 ~1983
131996326399277 ~1979
1320023554409678 ~1982
1320113739263298 ~1982
132019126403837 ~1979
132025126405037 ~1979
1320667871640238 ~1982
13207211479207539 ~1983
13209733064657379 ~1984
132103126420637 ~1979
132115779269437 ~1980
132121379272797 ~1980
132127379276397 ~1980
132131926426397 ~1979
1321349105707938 ~1980
132147779288637 ~1980
132151379290797 ~1980
1321577185020798 ~1981
Exp. Prime Factor Digits Year
1321589502203838 ~1982
1321627237892878 ~1981
1321637396491118 ~1982
132169379301597 ~1980
1321763422964178 ~1982
132182326436477 ~1979
1321867211498738 ~1981
1321919105753538 ~1980
132200326440077 ~1979
132211779327037 ~1980
1322341211574578 ~1981
1322357502495678 ~1982
132242326448477 ~1979
132254326450877 ~1979
1322557396767118 ~1982
132262179357277 ~1980
132264179358477 ~1980
132283126456637 ~1979
132293926458797 ~1979
132295379377197 ~1980
132296326459277 ~1979
13230011031940799 ~1983
1323017105841378 ~1980
13230731243688639 ~1983
1323221502823998 ~1982
Exp. Prime Factor Digits Year
1323281423449938 ~1982
1323307132330718 ~1980
1323307529322818
13233231270390099 ~1983
1323373714621438 ~1982
1323437635249778 ~1982
13234577596643199 ~1985
13235031270562899 ~1983
1323541211766578 ~1981
1323551635304498 ~1982
132365926473197 ~1979
132377926475597 ~1979
1323799847231378 ~1982
1323877635460978 ~1982
132392326478477 ~1979
1323967132396718 ~1980
1323967847338898
13240971271133139 ~1983
1324313317835138 ~1981
132445126489037 ~1979
1324571105965698 ~1980
1324591238426398 ~1981
1324607105968578 ~1980
1324651132465118 ~1980
1324681291429838 ~1981
Exp. Prime Factor Digits Year
1324733397419918 ~1982
1324867450454798 ~1982
1324871105989698 ~1980
1325011212001778 ~1981
132506326501277 ~1979
132512326502477 ~1979
13252633392673299 ~1984
132527379516397 ~1980
13253331378346339 ~1983
132539926507997 ~1979
1325417397625118 ~1982
132550179530077 ~1980
1325509291611998 ~1981
1325627106050178 ~1980
1325657318157698 ~1981
1325707450740398 ~1982
1325773397731918 ~1982
1325861106068898 ~1980
132590326518077 ~1979
1325911132591118 ~1980
13260017001285299 ~1985
1326071636514098 ~1982
1326089397826718 ~1982
132623926524797 ~1979
132625379575197 ~1980
292
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25-04-06