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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
7780757622460578 ~1986
7780891778089118 ~1987
7780919155618398 ~1985
7781159155623198 ~1985
7781261466875678 ~1986
7781297466877838 ~1986
7781573466894398 ~1986
7781591155631838 ~1985
7781821466909278 ~1986
7782377622590178 ~1986
7782587622606978 ~1986
7782779155655598 ~1985
7782917466975038 ~1986
7783343155666878 ~1985
7783621467017278 ~1986
7783757622700578 ~1986
77840391868169379 ~1987
77842211712528639 ~1987
7784459155689198 ~1985
7784593467075598 ~1986
7784723155694478 ~1985
77847292335418719 ~1988
7784771622781698 ~1986
7784831155696638 ~1985
7784951155699038 ~1985
Exp. Prime Factor Digits Year
77849812335494319 ~1988
7785131155702638 ~1985
7785341467120478 ~1986
7785359155707198 ~1985
7785803155716078 ~1985
7785913467154798 ~1986
7786151155723038 ~1985
7786451155729038 ~1985
7786511155730238 ~1985
7786763155735278 ~1985
7786873467212398 ~1986
7787183155743678 ~1985
7787291155745838 ~1985
7787303155746078 ~1985
7787441622995298 ~1986
7787537467252238 ~1986
7787677467260638 ~1986
7787699623015938 ~1986
7787771155755438 ~1985
7787951623036098 ~1986
7788181467290878 ~1986
7788259778825918 ~1987
7788631778863118 ~1987
77888576231085619 ~1989
7789073467344398 ~1986
Exp. Prime Factor Digits Year
7789079155781598 ~1985
77891891364665912911 ~1992
7789253467355198 ~1986
7789343155786878 ~1985
77893631246298099 ~1987
7789403155788078 ~1985
77894694829470799 ~1988
7789583155791678 ~1985
7789841235253198310 ~1990
7789919623193538 ~1986
7789997467399838 ~1986
7790423155808478 ~1985
7790459155809198 ~1985
7790591155811838 ~1985
7790639623251138 ~1986
7790897467453838 ~1986
7790903155818078 ~1985
7791239623299138 ~1986
7791379779137918 ~1987
7791493467489598 ~1986
7791551155831038 ~1985
7791677467500638 ~1986
7791697467501838 ~1986
7791911155838238 ~1985
7791911623352898
Exp. Prime Factor Digits Year
7793153467589198 ~1986
7793231623458498 ~1986
7793459155869198 ~1985
7793473467608398 ~1986
7793759155875198 ~1985
7794071155881438 ~1985
7794323155886478 ~1985
77946434988571539 ~1988
7794863155897278 ~1985
7794929623594338 ~1986
7794971623597698 ~1986
7795223155904478 ~1985
7795237467714238 ~1986
7795439155908798 ~1985
7795559623644738 ~1986
7795661467739678 ~1986
7795687779568718 ~1987
7795811155916238 ~1985
7796003155920078 ~1985
7796071779607118 ~1987
77961111403299999 ~1987
7796611779661118 ~1987
7796699155933998 ~1985
7797071155941438 ~1985
7797241467834478 ~1986
882
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25-05-04