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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
39281591785631838 ~1990
39281699785633998 ~1990
39281843785636878 ~1990
392818973142551779 ~1992
39282011785640238 ~1990
39282251785645038 ~1990
39285839785716798 ~1990
39286451785729038 ~1990
39286931785738638 ~1990
39287219785744398 ~1990
39288383785767678 ~1990
39288659785773198 ~1990
39288731785774638 ~1990
39288911785778238 ~1990
392928679430288099 ~1993
39293711785874238 ~1990
39293951785879038 ~1990
39294011785880238 ~1990
392946372357678239 ~1991
39294637117883911110
39295583785911678 ~1990
392959317073267599 ~1993
39297239785944798 ~1990
39299171785983438 ~1990
393002593930025919 ~1992
Exponent Prime Factor Digits Year
393010332358061999 ~1991
39302509251536057710 ~1994
39302999786059998 ~1990
39303503786070078 ~1990
39304151786083038 ~1990
39304379786087598 ~1990
39304571786091438 ~1990
39305111786102238 ~1990
39305639786112798 ~1990
39306221432368431110 ~1995
39306461432371071110 ~1995
393064932358389599 ~1991
39306731786134638 ~1990
39308039786160798 ~1990
393085313144682499 ~1992
393095397075717039 ~1993
39310571786211438 ~1990
39311039786220798 ~1990
39311423786228478 ~1990
39311843786236878 ~1990
39311903786238078 ~1990
39313343786266878 ~1990
393136212358817279 ~1991
39313811786276238 ~1990
39314579385282874310 ~1994
Exponent Prime Factor Digits Year
39315239786304798 ~1990
39315779786315598 ~1990
393159372358956239 ~1991
39316447188718945710 ~1994
39316883786337678 ~1990
39316919786338398 ~1990
39318551786371038 ~1990
39319139786382798 ~1990
39319211786384238 ~1990
39320219786404398 ~1990
39321011786420238 ~1990
393217273932172719 ~1992
39322331786446638 ~1990
393248236291971699 ~1993
39325037314600296110 ~1994
39326351786527038 ~1990
39326411786528238 ~1990
39327419786548398 ~1990
393279913932799119 ~1992
39329651786593038 ~1990
39330383786607678 ~1990
39330419786608398 ~1990
39331139786622798 ~1990
393313932359883599 ~1991
39331559786631198 ~1990
Exponent Prime Factor Digits Year
39334343786686878 ~1990
39335039786700798 ~1990
393360413146883299 ~1992
39336239786724798 ~1990
393372675286928684911 ~1997
393385036294160499 ~1993
39339143786782878 ~1990
393391633933916319 ~1992
393411773147294179 ~1992
393416332360497999 ~1991
393421613147372899 ~1992
39342731786854638 ~1990
39342791786855838 ~1990
39342851786857038 ~1990
393434898655567599 ~1993
39343571786871438 ~1990
39344629346232735310 ~1994
39348119786962398 ~1990
39348671786973438 ~1990
39348989118046967110 ~1993
393491538656813679 ~1993
39349379786987598 ~1990
39350123787002478 ~1990
39350879787017598 ~1990
39351563787031278 ~1990
1897
GIMPS The Prime Pages FactorDb.com
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25-04-13