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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
7746241464774478 ~1986
7746449619715938 ~1986
7746569619725538 ~1986
7746863154937278 ~1985
7747001619760098 ~1986
77470372943874079 ~1988
7747093464825598 ~1986
7747217464833038 ~1986
77475115578207939 ~1989
7747561464853678 ~1986
7747643154952878 ~1985
77476732479255379 ~1988
7747739154954798 ~1985
77478191394607439 ~1987
7747933464875998 ~1986
7747981464878878 ~1986
77480091084721279 ~1987
7748099154961998 ~1985
7748113464886798 ~1986
7748261464895678 ~1986
7748459154969198 ~1985
7748627619890178 ~1986
7748831154976638 ~1985
7748921464935278 ~1986
77489213719482099
Exp. Prime Factor Digits Year
7749227619938178 ~1986
7749251154985038 ~1985
7749299154985998 ~1985
7749353464961198 ~1986
7749491154989838 ~1985
7749517464971038 ~1986
7749611619968898 ~1986
77497996819823139 ~1989
7749803154996078 ~1985
77498039299763619
7749887619990978 ~1986
7750097620007778 ~1986
77501212325036319 ~1988
7750201465012078 ~1986
7750559155011198 ~1985
77507113255298639 ~1988
7750913465054798 ~1986
77511012325330319 ~1988
7751123155022478 ~1985
7751279620102338 ~1986
77515513255651439 ~1988
7751591620127298 ~1986
7751963155039278 ~1985
7752131155042638 ~1985
7752161465129678 ~1986
Exp. Prime Factor Digits Year
7752293465137598 ~1986
7752373465142398 ~1986
7752517465151038 ~1986
7752539155050798 ~1985
7752683155053678 ~1985
7753177465190638 ~1986
7753673465220398 ~1986
7753799155075998 ~1985
7754113465246798 ~1986
7754347775434718 ~1987
7754639155092798 ~1985
7754651155093038 ~1985
7754723155094478 ~1985
7754741620379298 ~1986
7754951155099038 ~1985
7754963155099278 ~1985
7755263155105278 ~1985
7755653465339198 ~1986
7755793465347598 ~1986
7755851155117038 ~1985
77558891861413379 ~1987
7755959155119198 ~1985
7756157620492578 ~1986
7756321465379278 ~1986
7756633465397998 ~1986
Exp. Prime Factor Digits Year
77566331706459279
7756781620542498 ~1986
7756951775695118 ~1987
7756961620556898 ~1986
7757041465422478 ~1986
77575515585436739 ~1989
7757699155153998 ~1985
7758083155161678 ~1985
7758329620666338 ~1986
7758743155174878 ~1985
77587691706929199 ~1987
7758899620711938 ~1986
7758911155178238 ~1985
77590991862183779 ~1987
7759151155183038 ~1985
7759513465570798 ~1986
7759777465586638 ~1986
7759877465592638 ~1986
7760017465601038 ~1986
7760171155203438 ~1985
7760321465619278 ~1986
7760471155209438 ~1985
77605673880283519 ~1988
7760717465643038 ~1986
7760807620864578 ~1986
895
GIMPS The Prime Pages FactorDb.com
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25-09-07