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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
12881663257633278 ~1986
12881777772906638 ~1988
128820113349322879 ~1989
12882059257641198 ~1986
128821093864632719 ~1989
12882983257659678 ~1986
12883439257668798 ~1986
12883571257671438 ~1986
12884051257681038 ~1986
12884461773067678 ~1988
12884471257689438 ~1986
12884771257695438 ~1986
12884779270580359110 ~1991
128848872061581939 ~1989
128848911030791299 ~1988
12885263257705278 ~1986
12885419257708398 ~1986
128854191030833539
12885443257708878 ~1986
12885581773134878 ~1988
12885959257719198 ~1986
128862171030897379 ~1988
12886241773174478 ~1988
12886661773199678 ~1988
128867712319618799 ~1989
Exponent Prime Factor Digits Year
12886931257738638 ~1986
128875875155034819 ~1990
12887603257752078 ~1986
12887713773262798 ~1988
128878693866360719 ~1989
128880675155226819 ~1990
12888131257762638 ~1986
12888143257762878 ~1986
12888277773296638 ~1988
12888311257766238 ~1986
12888319270654699110 ~1991
12888503257770078 ~1986
12888539257770798 ~1986
12888971257779438 ~1986
128896491031171939 ~1988
12889823257796478 ~1986
12890219257804398 ~1986
128902871289028719 ~1988
12890291257805838 ~1986
12890723257814478 ~1986
12891433773485998 ~1988
12891479257829598 ~1986
12891731257834638 ~1986
12891803257836078 ~1986
12892331257846638 ~1986
Exponent Prime Factor Digits Year
12892513773550798 ~1988
12892541773552478 ~1988
12892703257854078 ~1986
12893099257861998 ~1986
12893291257865838 ~1986
128934711031477699 ~1988
12893483257869678 ~1986
12893677773620638 ~1988
12894263257885278 ~1986
12894383257887678 ~1986
12894671257893438 ~1986
12894803257896078 ~1986
12894839257896798 ~1986
12894923257898478 ~1986
12895079257901598 ~1986
12895331257906638 ~1986
12895439257908798 ~1986
12895451257909038 ~1986
128958492837086799 ~1989
12896519257930398 ~1986
12897383257947678 ~1986
12897803257956078 ~1986
12897971257959438 ~1986
12898799257975998 ~1986
12899437773966238 ~1988
Exponent Prime Factor Digits Year
12899483257989678 ~1986
12899531257990638 ~1986
12900011258000238 ~1986
12900311258006238 ~1986
12900551258011038 ~1986
12900599258011998 ~1986
129008039546594239 ~1990
12901081774064878 ~1988
129013812838303839 ~1989
12901571258031438 ~1986
12901979258039598 ~1986
12902117774127038 ~1988
12902423258048478 ~1986
12902783258055678 ~1986
129028671032229379 ~1988
12903179258063598 ~1987
129031791032254339
12903431258068638 ~1987
12903503258070078 ~1987
12903593774215598 ~1988
12903791258075838 ~1987
12904103258082078 ~1987
12904253774255198 ~1988
12904271258085438 ~1987
12904481774268878 ~1988
1146
GIMPS The Prime Pages FactorDb.com
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25-04-13