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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
388481977696397 ~1982
3885103388510318 ~1984
3885181233110878 ~1984
3885461233127678 ~1984
3885521310841698 ~1984
3885697233141838 ~1984
388574377714877 ~1982
388577977715597 ~1982
3885989544038478 ~1985
3886117233167038 ~1984
388619977723997 ~1982
3886229544072078 ~1985
3886231388623118 ~1984
3886357233181438 ~1984
3886537621845938 ~1985
388655977731197 ~1982
3886637233198238 ~1984
3886717621874738 ~1985
3886723621875698 ~1985
3886801233208078 ~1984
3886937310954978 ~1984
3886991310959298 ~1984
388700377740077 ~1982
388717177743437 ~1982
3887291310983298 ~1984
Exp. Prime Factor Digits Year
3887357310988578 ~1984
3887393233243598 ~1984
388739977747997 ~1982
3887489544248478 ~1985
388751977750397 ~1982
3887519699753438
3887581233254878 ~1984
388777177755437 ~1982
3887771699798798
3887839388783918 ~1984
38878931555157219 ~1986
3887993233279598 ~1984
3888463388846318 ~1984
388855177771037 ~1982
388861177772237 ~1982
3888629544408078 ~1985
3888763388876318 ~1984
3888823622211698 ~1985
3888991388899118 ~1984
388903177780637 ~1982
388907977781597 ~1982
388916377783277 ~1982
3889217233353038 ~1984
388963177792637 ~1982
3889733544562638 ~1985
Exp. Prime Factor Digits Year
388985977797197 ~1982
3889933233395998 ~1984
38899691166990719 ~1985
3890053233403198 ~1984
3890057311204578 ~1984
389006377801277 ~1982
3890071389007118 ~1984
38901111244835539 ~1985
3890119230295044910 ~1989
389017177803437 ~1982
38902611167078319 ~1985
3890563389056318 ~1984
3890581233434878 ~1984
3890737233444238 ~1984
389081977816397 ~1982
3890927311274178 ~1984
389096377819277 ~1982
38910776147901679 ~1987
389113177822637 ~1982
3891197233471838 ~1984
3891353233481198 ~1984
3891493233489598 ~1984
389165977833197 ~1982
3891721622675378 ~1985
3891821311345698 ~1984
Exp. Prime Factor Digits Year
3891913233514798 ~1984
3891977311358178 ~1984
389215177843037 ~1982
3892183622749298 ~1985
3892279389227918 ~1984
3892741233564478 ~1984
3892817311425378 ~1984
3892877233572638 ~1984
3892907311432578 ~1984
389294377858877 ~1982
389306377861277 ~1982
3893173622907698 ~1985
3893497233609838 ~1984
3893609545105278 ~1985
389375977875197 ~1982
3894043389404318 ~1984
3894223623075698 ~1985
3894307623089138 ~1985
3894347700982478 ~1985
3894481233668878 ~1984
3894619389461918 ~1984
389504377900877 ~1982
3895051389505118 ~1984
3895097233705838 ~1984
389534377906877 ~1982
597
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25-11-17