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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
2096639241952140710
20966931174148099 ~1984
2096851209685118 ~1982
2096909796825438 ~1984
2097041125822478 ~1982
209708341941677 ~1980
209714341942877 ~1980
2097211335553778 ~1983
209774341954877 ~1980
209777941955597 ~1980
209791141958237 ~1980
2097917125875038 ~1982
2097983671354578 ~1983
2098051209805118 ~1982
2098279377690238 ~1983
2098289167863138 ~1982
2098471335755378 ~1983
2098511167880898 ~1982
2098519713496478 ~1983
2098673125920398 ~1982
2098699209869918 ~1982
2098741629622318 ~1983
2098757167900578 ~1982
209876341975277 ~1980
2098801125928078 ~1982
Exp. Prime Factor Digits Year
2099249293894878 ~1982
2099287209928718 ~1982
2099453671824978 ~1983
2099659377938638 ~1983
2099677125980638 ~1982
2099761125985678 ~1982
209977141995437 ~1980
2099863713953438 ~1983
209996341999277 ~1980
210001142000237 ~1980
210007142001437 ~1980
2100229504054978 ~1983
2100257126015438 ~1982
2100407504097698 ~1983
2100463210046318 ~1982
2100541126032478 ~1982
2100541630162318
210055142011037 ~1980
2100559378100638 ~1983
2100661126039678 ~1982
2100941126056478 ~1982
210109142021837 ~1980
2101093336174898 ~1983
210113942022797 ~1980
2101181168094498 ~1982
Exp. Prime Factor Digits Year
2101213171038738310 ~1987
210122342024477 ~1980
210128342025677 ~1980
2101447336231538 ~1983
2101513336242098 ~1983
21017892143824799 ~1985
2101807840722818 ~1984
2102117126127038 ~1982
2102167336346738 ~1983
210218342043677 ~1980
2102267546589438 ~1983
2102279672729298 ~1983
2102411168192898 ~1982
2102411672771538
210251942050397 ~1980
210253142050637 ~1980
2102561126153678 ~1982
210265142053037 ~1980
2102777168222178 ~1982
2102801168224098 ~1982
2102801630840318
2102839210283918 ~1982
2102887841154818 ~1984
2102897799100878 ~1984
210301142060237 ~1980
Exp. Prime Factor Digits Year
210338342067677 ~1980
2103449168275938 ~1982
2103503504840738 ~1983
2103601126216078 ~1982
2103617168289378 ~1982
2103617631085118
210379142075837 ~1980
2103817126229038 ~1982
21038591514778499 ~1984
21040612146142239 ~1985
2104139378745038 ~1983
2104241126254478 ~1982
2104273967965598 ~1984
2104337126260238 ~1982
210449942089997 ~1980
2104541126272478 ~1982
2104633505111938 ~1983
210470342094077 ~1980
2104717126283038 ~1982
2104717505132098
2104757168380578 ~1982
21048115093642639 ~1985
210485942097197 ~1980
2104961168396898 ~1982
21049691010385139 ~1984
407
GIMPS The Prime Pages FactorDb.com
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26-03-08