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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 Dig. Year
2874750028633909...38936914 2024
28747713137957495426275912 ~2021
28751937901157503875802312 ~2021
28752165133157504330266312 ~2021
28752294170357504588340712 ~2021
28753186661957506373323912 ~2021
28754645078357509290156712 ~2021
28761967487957523934975912 ~2021
2876262834535925...39131914 2023
28763351669957526703339912 ~2021
28763541661157527083322312 ~2021
28763986322357527972644712 ~2021
28764115997957528231995912 ~2021
2876507088231438...44115114 2024
28765177961957530355923912 ~2021
28766154308357532308616712 ~2021
28769247566357538495132712 ~2021
28770315461957540630923912 ~2021
28776900011957553800023912 ~2021
2877722747991594...23864715 2025
28779257453957558514907912 ~2021
28779435371957558870743912 ~2021
28781622992357563245984712 ~2021
28782848540357565697080712 ~2021
28789610504357579221008712 ~2021
Exponent Prime Factor Dig. Year
28793706305957587412611912 ~2021
28797075329957594150659912 ~2021
28798570135157597140270312 ~2021
28800980216357601960432712 ~2021
28803733553957607467107912 ~2021
2880395897031901...92039914 2024
2880550182131860...76559915 2023
28805761904357611523808712 ~2021
28807056179957614112359912 ~2021
2881103908198124...21095914 2023
2881266153736165...68982314 2025
28812964598357625929196712 ~2021
2881341727514667...98566314 2023
2881508795515071...80097714 2024
28816948280357633896560712 ~2021
2881959320412559...65240915 2025
28819779031157639558062312 ~2021
28821230168357642460336712 ~2021
28821644573957643289147912 ~2021
2882208101212478...67040714 2024
2883022034171055...45062315 2023
28830716965157661433930312 ~2021
28836500297957673000595912 ~2021
28839601694357679203388712 ~2021
28841432663957682865327912 ~2021
Exponent Prime Factor Dig. Year
28843001918357686003836712 ~2021
28846558616357693117232712 ~2021
28847153923157694307846312 ~2021
28847835625157695671250312 ~2021
28848000038357696000076712 ~2021
28848455011157696910022312 ~2021
28849803865157699607730312 ~2021
28851249758357702499516712 ~2021
28853064830357706129660712 ~2021
28856637257957713274515912 ~2021
28858017719957716035439912 ~2021
2885947502715933...55717715 2025
28860905387957721810775912 ~2021
28861154735957722309471912 ~2021
2886146268715368...59800714 2023
2886312605834675...21444714 2023
28868921120357737842240712 ~2021
28870422595157740845190312 ~2021
28871610008357743220016712 ~2021
28872391745957744783491912 ~2021
28873757407157747514814312 ~2021
28873968673157747937346312 ~2021
28876733197157753466394312 ~2021
28877474048357754948096712 ~2021
28880384299157760768598312 ~2021
Exponent Prime Factor Dig. Year
28881105776357762211552712 ~2021
28881246617957762493235912 ~2021
28881249307157762498614312 ~2021
2888184255891496...45510315 2025
2888528897573466...77084114 2024
28886931986357773863972712 ~2021
28887799826357775599652712 ~2021
28888204808357776409616712 ~2021
28892529494357785058988712 ~2021
28892793533957785587067912 ~2021
28892830538357785661076712 ~2021
28893668873957787337747912 ~2021
2889381860873727...05223115 2025
28894018541957788037083912 ~2021
2889433737133554...66699115 2025
2889526920312773...43497714 2024
28895361890357790723780712 ~2021
28896932581157793865162312 ~2021
28898600723957797201447912 ~2021
28899850892357799701784712 ~2021
2890073099711017...10979315 2024
28902262055957804524111912 ~2021
28902390829157804781658312 ~2021
28904340053957808680107912 ~2021
28904815583957809631167912 ~2021
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25-11-17