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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
2851601228128098 ~1983
2851741171104478 ~1983
285205157041037 ~1981
285215957043197 ~1981
285230357046077 ~1981
2852371456379378 ~1984
285251957050397 ~1981
2852669228213538 ~1983
2852671513480798 ~1984
285271157054237 ~1981
285277157055437 ~1981
28528731768781279 ~1985
2853079285307918 ~1983
2853197399447598 ~1983
2853427285342718 ~1983
285344357068877 ~1981
285365957073197 ~1981
2853787684908898 ~1984
2853853627847678 ~1984
2853869913238098 ~1984
2853881171232878 ~1983
2853883456621298 ~1984
2854091513736398 ~1984
28541574966233199 ~1986
28541712568753919 ~1985
Exp. Prime Factor Digits Year
285434357086877 ~1981
285439157087837 ~1981
2854463685071138 ~1984
2854547228363778 ~1983
2854603285460318 ~1983
2854627513832878 ~1984
2854751228380098 ~1983
285476357095277 ~1981
2854799228383938 ~1983
28547992569319119
28550333597341599 ~1986
2855383285538318 ~1983
285539957107997 ~1981
2855429228434338 ~1983
28554312055910339 ~1985
285545957109197 ~1981
2855483913754578 ~1984
2855591228447298 ~1983
2855617171337038 ~1983
2855707514027278 ~1984
2855731285573118 ~1983
285608357121677 ~1981
2856241171374478 ~1983
2856241628373038
2856377171382638 ~1983
Exp. Prime Factor Digits Year
2856449228515938 ~1983
285680357136077 ~1981
2856803685632738
2856857171411438 ~1983
2856871285687118 ~1983
2856883285688318 ~1983
285692357138477 ~1981
28569232571230719
2857061228564898 ~1983
2857073399990238 ~1983
2857079228566338 ~1983
2857159514288638 ~1984
2857219285721918 ~1983
285725957145197 ~1981
2857403130297576910 ~1987
28574534971968239 ~1986
2857493400049038 ~1983
285751157150237 ~1981
2857531285753118 ~1983
2857559166881445710 ~1987
2857661171459678 ~1983
285776357155277 ~1981
28578671371776179 ~1985
2857913400107838 ~1983
285793157158637 ~1981
Exp. Prime Factor Digits Year
2857951285795118 ~1983
2858041171482478 ~1983
285818357163677 ~1981
2858221628808638 ~1984
285842357168477 ~1981
2858503285850318 ~1983
2858503457360498
285865157173037 ~1981
285869957173997 ~1981
28588276460949039 ~1986
2858833171529998 ~1983
2858981171538878 ~1983
2859047743352238 ~1984
2859121171547278 ~1983
28591214288681519
2859133171547998 ~1983
2859163686199138 ~1984
2859341228747298 ~1983
285949157189837 ~1981
28596736863215219 ~1987
285980357196077 ~1981
2859847457575538 ~1984
2859949686387778 ~1984
285997157199437 ~1981
2860021171601278 ~1983
491
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25-10-26