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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 Digits Year
2499543114999086239 ~1997
2499545994999091999 ~1997
249956803249956803110 ~1998
249957011199965608910 ~1998
2499613314999226639 ~1997
249962927199970341710 ~1998
249968273149980963910 ~1998
2499682914999365839 ~1997
249970121199976096910 ~1998
2499720114999440239 ~1997
2499733434999466879 ~1997
2499807714999615439 ~1997
2499875394999750799 ~1997
2499908034999816079 ~1997
2499917994999835999 ~1997
2500013995000027999 ~1997
2500069795000139599 ~1997
250011569350016196710 ~1999
2500205395000410799 ~1997
2500246795000493599 ~1997
250028221550062086310 ~1999
250028803250028803110 ~1998
2500299595000599199 ~1997
2500307995000615999 ~1997
2500339915000679839 ~1997
Exponent Prime Factor Digits Year
2500579915001159839 ~1997
250061893150037135910 ~1998
250062121400099393710 ~1999
2500646635001293279 ~1997
2500653235001306479 ~1997
2500680235001360479 ~1997
2500759795001519599 ~1997
250082117200065693710 ~1998
2500821371150377830311 ~2000
250084643600203143310 ~1999
250085057150051034310 ~1998
2500900195001800399 ~1997
2500902715001805439 ~1997
2500994635001989279 ~1997
250100791250100791110 ~1998
2501060334351844974311 ~2001
2501061235002122479 ~1997
2501192515002385039 ~1997
2501270995002541999 ~1997
250127653400204244910 ~1999
250129001150077400710 ~1998
250131887200105509710 ~1998
2501319674652454586311 ~2001
2501332691800959536911 ~2000
2501340115002680239 ~1997
Exponent Prime Factor Digits Year
2501352835002705679 ~1997
2501376235002752479 ~1997
2501631835003263679 ~1997
2501644195003288399 ~1997
2501708035003416079 ~1997
2501722315003444639 ~1997
2501722915003445839 ~1997
250174217150104530310 ~1998
2501765995003531999 ~1997
2501816995003633999 ~1997
2501820715003641439 ~1997
250192259200153807310 ~1998
2501950315003900639 ~1997
2501971315003942639 ~1997
2502030715004061439 ~1997
2502066835004133679 ~1997
250219633150131779910 ~1998
2502213715004427439 ~1997
2502263635004527279 ~1997
2502338395004676799 ~1997
2502344035004688079 ~1997
250240853150144511910 ~1998
2502447235004894479 ~1997
2502467515004935039 ~1997
2502542395005084799 ~1997
Exponent Prime Factor Digits Year
2502584995005169999 ~1997
250261159250261159110 ~1998
2502707995005415999 ~1997
250273613150164167910 ~1998
2502788515005577039 ~1997
250282049350394868710 ~1999
2502834715005669439 ~1997
250283597150170158310 ~1998
2502838795005677599 ~1997
250299113600717871310 ~1999
2503047835006095679 ~1997
250306843250306843110 ~1998
250308937150185362310 ~1998
250310651200248520910 ~1998
2503144195006288399 ~1997
2503323715006647439 ~1997
2503340995006681999 ~1997
250334407400535051310 ~1999
2503388995006777999 ~1997
2503449115006898239 ~1997
2503486435006972879 ~1997
2503508515007017039 ~1997
2503526995007053999 ~1997
250354061150212436710 ~1998
2503632595007265199 ~1997
3175
GIMPS The Prime Pages FactorDb.com
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26-03-08