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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
172531671380253379 ~1989
172533371035200239 ~1989
17253443345068878 ~1987
172540791380326339 ~1989
17254511345090238 ~1987
17254823345096478 ~1987
17254883345097678 ~1987
172551771035310639 ~1989
17255723345114478 ~1987
17255939345118798 ~1987
17257451345149038 ~1987
172575011035450079 ~1989
17257511345150238 ~1987
17257631345152638 ~1987
17257811345156238 ~1987
17259059345181198 ~1987
172591274142190499 ~1990
17259323345186478 ~1987
172596672761546739 ~1990
17259779345195598 ~1987
17260079345201598 ~1987
17260643345212878 ~1987
17260751345215038 ~1987
172609935178297919 ~1990
17261039345220798 ~1987
Exponent Prime Factor Digits Year
172612131035672799 ~1989
17261399345227998 ~1987
17261663345233278 ~1987
172618972416665599 ~1990
172621311380970499 ~1989
172624071380992579 ~1989
172629011035774079 ~1989
17263199345263998 ~1988
17263331345266638 ~1988
17263391345267838 ~1988
17263871345277438 ~1988
17263943345278878 ~1988
17264003345280078 ~1988
172641111381128899 ~1989
17264519345290398 ~1988
17265023345300478 ~1988
172651731035910399 ~1989
172657131035942799 ~1989
17265719345314398 ~1988
172661531035969199 ~1989
17266439345328798 ~1988
172670771036024639 ~1989
172672319669649379 ~1991
17268143345362878 ~1988
172681911381455299 ~1989
Exponent Prime Factor Digits Year
17268299345365998 ~1988
172684371036106239 ~1989
17268983345379678 ~1988
17269019345380398 ~1988
17269403345388078 ~1988
17269463345389278 ~1988
172695411381563299 ~1989
17269559345391198 ~1988
17269823345396478 ~1988
172698591381588739 ~1989
17270483345409678 ~1988
172707971036247839 ~1989
172713473108842479 ~1990
17271899345437998 ~1988
172720931036325599 ~1989
172721092418095279 ~1990
17272259345445198 ~1988
17272583345451678 ~1988
172727575181827119 ~1990
172730991381847939 ~1989
17274539345490798 ~1988
172746371036478239 ~1989
17274791345495838 ~1988
172756394146153379 ~1990
172762211036573279 ~1989
Exponent Prime Factor Digits Year
17276531345530638 ~1988
172767714491960479 ~1990
172770531036623199 ~1989
17277563345551278 ~1988
172776471382211779 ~1989
17277719345554398 ~1988
17277791345555838 ~1988
17277863345557278 ~1988
17278031345560638 ~1988
172780571036683439 ~1989
172784271382274179 ~1989
172784637256954479 ~1991
172788615183658319 ~1990
17279243345584878 ~1988
172800131036800799 ~1989
17280359345607198 ~1988
17280479345609598 ~1988
17280611345612238 ~1988
172807131036842799 ~1989
17280743345614878 ~1988
172809732764955680111 ~1995
172810795529945299 ~1990
17281223345624478 ~1988
172816372419429199 ~1990
172821171036927039 ~1989
1339
GIMPS The Prime Pages FactorDb.com
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25-07-08