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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
2525507606121698 ~1984
2525647404103538 ~1983
2526049606251778 ~1984
25260491010419619
252629950525997 ~1981
2526361151581678 ~1982
252637150527437 ~1981
252638350527677 ~1981
2526521151591278 ~1982
2526571252657118 ~1983
2526583252658318 ~1983
2526607252660718 ~1983
2526653151599198 ~1982
2526697151601838 ~1982
2526743656953198 ~1984
2526847606443298 ~1984
2526893151613598 ~1982
252698350539677 ~1981
2527013353781838 ~1983
2527037151622238 ~1982
2527037202162978
2527061202164898 ~1982
2527297151637838 ~1982
252740350548077 ~1981
2527597151655838 ~1982
Exp. Prime Factor Digits Year
252764350552877 ~1981
2527913151674798 ~1982
2527961151677678 ~1982
2528147455066478 ~1983
252824350564877 ~1981
252841150568237 ~1981
2528419252841918 ~1983
2528657202292578 ~1982
2528707252870718 ~1983
2528717151723038 ~1982
252881950576397 ~1981
2529151404664178 ~1983
2529161151749678 ~1982
2529181556419838 ~1984
2529251202340098 ~1982
2529391252939118 ~1983
2529419202353538 ~1982
2529419455295438
25295291365945679 ~1984
2529643252964318 ~1983
2529809202384738 ~1982
2529881202390498 ~1982
252989950597997 ~1981
2529929202394338 ~1982
2529953354193438 ~1983
Exp. Prime Factor Digits Year
252995950599197 ~1981
2529997404799538 ~1983
2530001151800078 ~1982
253004350600877 ~1981
2530109202408738 ~1982
2530271202421698 ~1982
25303012176058879 ~1985
2530727657989038 ~1984
2530777759233118 ~1984
2530783253078318 ~1983
2530793607390338 ~1984
253079950615997 ~1981
2530877354322798 ~1983
2530981556815838 ~1984
253109950621997 ~1981
2531101151866078 ~1982
253118350623677 ~1981
2531293405006898 ~1983
2531413151884798 ~1982
253142350628477 ~1981
253151950630397 ~1981
253166350633277 ~1981
2531761405081778 ~1983
2531821151909278 ~1982
2531833607639938 ~1984
Exp. Prime Factor Digits Year
2531917151915038 ~1982
2531983405117298 ~1983
25320072683927439 ~1985
25320072886487999
253208350641677 ~1981
253214350642877 ~1981
2532143658357198
2532307405169138 ~1983
2532437202594978 ~1982
25325594507955039 ~1986
2532787405245938 ~1983
253279150655837 ~1981
2532991405278578 ~1983
2533081405292978 ~1983
2533127202650178 ~1982
25331891367922079 ~1984
2533199202655938 ~1982
2533303253330318 ~1983
25333136890611379 ~1986
2533331455999598 ~1983
2533331658666078
25333939880232719 ~1987
2533397608015298 ~1984
2533681152020878 ~1982
2533691336474164910 ~1988
448
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25-06-29