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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
12441179248823598 ~1986
12441311995304898 ~1988
12441419248828398 ~1986
12441893746513598 ~1988
12442043248840878 ~1986
12442201746532078 ~1988
12442301746538078 ~1988
12442343248846878 ~1986
12442553746553198 ~1988
12442817746569038 ~1988
12442883248857678 ~1986
12442933746575998 ~1988
124429391244293919 ~1988
12442993746579598 ~1988
124431911244319119 ~1988
12443591248871838 ~1986
124437893733136719 ~1989
12443999248879998 ~1986
12444163530121343910 ~1992
12444251248885038 ~1986
12444611248892238 ~1986
12445091248901838 ~1986
12445157746709438 ~1988
12445529995642338 ~1988
124456792240222239 ~1989
Exponent Prime Factor Digits Year
12445871248917438 ~1986
124467233982951379 ~1989
12446893746813598 ~1988
12447107995768578 ~1988
124471211991539379 ~1989
124473431244734319 ~1988
12447371248947438 ~1986
12447557746853438 ~1988
12447713746862798 ~1988
12447817746869038 ~1988
12447937746876238 ~1988
12447977746878638 ~1988
12448031248960638 ~1986
12448151248963038 ~1986
124484411991750579 ~1989
12448571248971438 ~1986
12448679248973598 ~1986
124487392240773039 ~1989
12448837746930238 ~1988
12449249995939938 ~1988
12449293746957598 ~1988
12449603248992078 ~1986
12449981995998498 ~1988
12449999248999998 ~1986
12450059249001198 ~1986
Exponent Prime Factor Digits Year
12450131249002638 ~1986
12450419249008398 ~1986
12450577747034638 ~1988
124506191245061919 ~1988
12450863249017278 ~1986
12451141747068478 ~1988
12451169996093538 ~1988
12451223249024478 ~1986
12451253418362100910 ~1992
124513994233475679 ~1989
124514477221839279 ~1990
12451619249032398 ~1986
124517092988410179 ~1989
12451919249038398 ~1986
12451931249038638 ~1986
12452137747128238 ~1988
124522631245226319 ~1988
12452351249047038 ~1986
12452399996191938 ~1988
124526632988639139 ~1989
12452873747172398 ~1988
124528998966087299 ~1990
12453659249073198 ~1986
12453671249073438 ~1986
124537614732429199 ~1990
Exponent Prime Factor Digits Year
12454031249080638 ~1986
12454223249084478 ~1986
124543133985380179 ~1989
12454439249088798 ~1986
12454619249092398 ~1986
12454691249093838 ~1986
12454853747291198 ~1988
12455039249100798 ~1986
12455591996447298 ~1988
12455711249114238 ~1986
12455753747345198 ~1988
12455783249115678 ~1986
12456011249120238 ~1986
12456131249122638 ~1986
12456337747380238 ~1988
12456491249129838 ~1986
12456791249135838 ~1986
124569911245699119 ~1988
124574092989778179 ~1989
124575911245759119 ~1988
12457619249152398 ~1986
12457633747457998 ~1988
12457967996637378 ~1988
12457981747478878 ~1988
12458279996662338 ~1988
1197
GIMPS The Prime Pages FactorDb.com
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26-03-08