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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
254014912032119299 ~1990
25402631508052638 ~1989
254026612032212899 ~1990
25402703508054078 ~1989
25402823508056478 ~1989
25402859508057198 ~1989
25403783508075678 ~1989
25404419508088398 ~1989
25404503508090078 ~1989
25405043508100878 ~1989
25405091508101838 ~1989
254054417621632319 ~1992
254058896097413379 ~1991
254060331524361999 ~1990
254060572032484579 ~1990
254065731524394399 ~1990
25406939508138798 ~1989
25407131508142638 ~1989
25407311508146238 ~1989
25407359508147198 ~1989
25407971508159438 ~1989
25408079508161598 ~1989
25408199508163998 ~1989
25408393116878607910 ~1992
25408403508168078 ~1989
Exponent Prime Factor Digits Year
25408679508173598 ~1989
25409171508183438 ~1989
25409459508189198 ~1989
254094731524568399 ~1990
25409591508191838 ~1989
25410389157544411910 ~1992
25410743508214878 ~1989
254109772032878179 ~1990
25411079508221598 ~1989
254111171524667039 ~1990
254116011524696079 ~1990
25411643508232878 ~1989
254117771524706639 ~1990
25412459508249198 ~1989
25412819508256398 ~1989
25412819106733839910
254134492033075939 ~1990
254138232541382319 ~1991
254139171524835039 ~1990
25414619508292398 ~1989
254154472033235779 ~1990
25415723508314478 ~1989
25415783508315678 ~1989
254158936099814339 ~1991
254161612033292899 ~1990
Exponent Prime Factor Digits Year
25416491508329838 ~1989
254164912033319299
25417391508347838 ~1989
254181912541819119 ~1991
25418411508368238 ~1989
25418423508368478 ~1989
25418531508370638 ~1989
254190194575423439 ~1991
25419671508393438 ~1989
254199432541994319 ~1991
25420229122017099310 ~1992
25420379508407598 ~1989
25420463508409278 ~1989
25420523508410478 ~1989
25420751508415038 ~1989
25420931508418638 ~1989
25421771508435438 ~1989
25421939508438798 ~1989
254222834067565299 ~1991
25422791508455838 ~1989
25422851508457038 ~1989
254228572033828579 ~1990
25423043508460878 ~1989
25423103508462078 ~1989
25423571508471438 ~1989
Exponent Prime Factor Digits Year
25424183508483678 ~1989
25424519508490398 ~1989
254246571525479439 ~1990
25424699508493998 ~1989
25424771508495438 ~1989
254251512542515119 ~1991
25425311508506238 ~1989
25425479508509598 ~1989
25425551508511038 ~1989
25425899508517998 ~1989
254265893559722479 ~1991
25426763508535278 ~1989
254268371525610239 ~1990
25426991508539838 ~1989
25427219508544398 ~1989
254272731525636399 ~1990
25427999508559998 ~1989
254283712034269699 ~1990
25429499508589998 ~1989
25430039508600798 ~1989
25430423508608478 ~1989
25430579508611598 ~1989
254306093560285279 ~1991
25431611508632238 ~1989
25431863508637278 ~1989
1665
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26-01-11