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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
25425899508517998 ~1989
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
25432559508651198 ~1989
25432619508652398 ~1989
25433651508673038 ~1989
25433879508677598 ~1989
25434323508686478 ~1989
25434551244171689710 ~1993
25435031508700638 ~1989
254355171526131039 ~1990
25435691508713838 ~1989
254362971526177839 ~1990
Exponent Prime Factor Digits Year
25436303508726078 ~1989
254365576104773699 ~1991
25436759508735198 ~1989
25436891508737838 ~1989
25437239508744798 ~1989
25437311508746238 ~1989
25437539508750798 ~1989
254387992035103939 ~1990
25438811508776238 ~1989
25438883508777678 ~1989
25440011508800238 ~1989
25440179508803598 ~1989
254404194579275439 ~1991
25440539508810798 ~1989
25440731508814638 ~1989
25441319508826398 ~1989
254423274579618879 ~1991
25442603508852078 ~1989
25442639508852798 ~1989
25442759508855198 ~1989
254427771526566639 ~1990
25442783508855678 ~1989
25443059508861198 ~1989
254431672035453379 ~1990
25444091508881838 ~1989
Exponent Prime Factor Digits Year
254446074580029279 ~1991
254449611526697679 ~1990
25445219508904398 ~1989
25446023508920478 ~1989
25446143508922878 ~1989
25446299508925998 ~1989
25446563508931278 ~1989
25446623508932478 ~1989
25447043508940878 ~1989
25447391508947838 ~1989
25447871508957438 ~1989
25448183508963678 ~1989
25449191508983838 ~1989
254492411526954479 ~1990
25449551508991038 ~1989
25449563508991278 ~1989
25450031509000638 ~1989
25450703509014078 ~1989
254510531527063199 ~1990
25451999509039998 ~1989
254524032545240319 ~1991
25452671509053438 ~1989
254530731527184399 ~1990
25453163509063278 ~1989
254535172036281379 ~1990
Exponent Prime Factor Digits Year
25453583509071678 ~1989
25453943509078878 ~1989
25454183509083678 ~1989
25454339509086798 ~1989
254545214072723379 ~1991
25454543509090878 ~1989
25454603509092078 ~1989
25454843509096878 ~1989
25455119509102398 ~1989
25455299509105998 ~1989
25455323509106478 ~1989
25455719509114398 ~1989
254558531527351199 ~1990
25455863509117278 ~1989
25456391509127838 ~1989
254568892036551139 ~1990
25457639509152798 ~1989
25457797137472103910 ~1992
25458431509168638 ~1989
25458551509171038 ~1989
25458659509173198 ~1989
25458743509174878 ~1989
25458791509175838 ~1989
25459103509182078 ~1989
25459223509184478 ~1989
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25-06-08