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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
3966121237967278 ~1984
396623979324797 ~1983
396632379326477 ~1983
39665171189955119 ~1985
3966701317336098 ~1984
3966773238006398 ~1984
39668831348740239 ~1986
3967253555415438 ~1985
396725979345197 ~1983
3967297634767538 ~1985
39673516427108639 ~1987
396749979349997 ~1983
396757179351437 ~1983
3967627396762718 ~1984
396767979353597 ~1983
3967793238067598 ~1984
396781179356237 ~1983
3967913238074798 ~1984
396818379363677 ~1983
3968227396822718 ~1984
396829179365837 ~1983
3968339317467138 ~1984
3968381317470498 ~1984
39683873174709619 ~1986
396841179368237 ~1983
Exp. Prime Factor Digits Year
396848379369677 ~1983
396854379370877 ~1983
39685671031827439 ~1985
3968617238117038 ~1984
3968717238123038 ~1984
396881979376397 ~1983
39690711031958479 ~1985
3969137317530978 ~1984
3969151396915118 ~1984
396926379385277 ~1983
39693497621150099 ~1987
396941979388397 ~1983
396961179392237 ~1983
396965979393197 ~1983
3969737555763198 ~1985
396986379397277 ~1983
39698632223123299
396992379398477 ~1983
3969943396994318 ~1984
3970033635205298 ~1985
3970121317609698 ~1984
397019979403997 ~1983
397022379404477 ~1983
397033179406637 ~1983
3970531635284978 ~1985
Exp. Prime Factor Digits Year
397064379412877 ~1983
39706571588262819 ~1986
397067979413597 ~1983
397069179413837 ~1983
3970739317659138 ~1984
397075179415037 ~1983
3970781238246878 ~1984
397085979417197 ~1983
3971393953134338 ~1985
397145979429197 ~1983
397148379429677 ~1983
3971599714887838 ~1985
3971621238297278 ~1984
3971731714911598 ~1985
3971833238309998 ~1984
3971861317748898 ~1984
397187979437597 ~1983
3971879317750338
3971911635505778 ~1985
3971911714943998
397196379439277 ~1983
397207179441437 ~1983
3972119714981438 ~1985
3972523635603698 ~1985
39725334131434339 ~1987
Exp. Prime Factor Digits Year
3972541238352478 ~1984
3972833238369998 ~1984
3972931397293118 ~1984
3972959317836738 ~1984
39731032860634179 ~1986
397328379465677 ~1983
397333179466637 ~1983
3973847715292478 ~1985
397391979478397 ~1983
3973997238439838 ~1984
3974027317922178 ~1984
39741431351208639 ~1986
397429179485837 ~1983
3974357238461438 ~1984
39746091192382719 ~1985
39746091907812339
3974681238480878 ~1984
3974717238483038 ~1984
397475979495197 ~1983
3974779953946978 ~1985
39747971589918819 ~1986
3975017318001378 ~1984
3975091397509118 ~1984
3975577238534638 ~1984
3975661636105778 ~1985
605
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25-11-17