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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
1947371817895838
1947397116843838 ~1981
1947683467443938 ~1983
1947779155822338 ~1982
1947853116871198 ~1981
194792338958477 ~1980
194798338959677 ~1980
1948099194809918 ~1982
19481391753325119 ~1984
1948187155854978 ~1982
194822338964477 ~1980
1948337467600898 ~1983
1948619467668578 ~1983
1948637155890978 ~1982
194870338974077 ~1980
1948763467703138 ~1983
1949257116955438 ~1981
194945938989197 ~1980
194947138989437 ~1980
194963938992797 ~1980
1949777116986638 ~1981
1949813584943918 ~1983
194981938996397 ~1980
1949933116995998 ~1981
1950023762848997710 ~1988
Exp. Prime Factor Digits Year
1950089585026718 ~1983
1950107507027838 ~1983
1950317585095118 ~1983
195041939008397 ~1980
1950419156033538
1950449624143698 ~1983
1950691195069118 ~1982
1950881156070498 ~1982
1950989156079138 ~1982
1951013624324178 ~1983
1951123195112318 ~1982
1951193117071598 ~1981
1951193624381778
19511931873145299
195119939023997 ~1980
1951249106147945710 ~1986
1951501117090078 ~1981
1951553117093198 ~1981
1951627195162718 ~1982
19516333122612819 ~1985
195173939034797 ~1980
195181139036237 ~1980
1951837585551118 ~1983
1951867351336078 ~1982
1951879351338238 ~1982
Exp. Prime Factor Digits Year
19518792186104499
1952053117123198 ~1981
1952201585660318 ~1983
19523511093316579 ~1984
1952563663871438 ~1983
1952567156205378 ~1982
1952627507683038 ~1983
1952641585792318 ~1983
195266339053277 ~1980
1952813117168798 ~1981
1952887195288718 ~1982
195293939058797 ~1980
1952939156235138
1953101117186078 ~1981
19531091718735939 ~1984
1953277117196638 ~1981
195329939065997 ~1980
19532991967753412711
1953383976691518 ~1984
1953451937656498 ~1983
1953509156280738 ~1982
1953617273506398 ~1982
1953767468904098 ~1983
1953821117229278 ~1981
195386339077277 ~1980
Exp. Prime Factor Digits Year
1954033117241998 ~1981
195434339086877 ~1980
19543431094432099
1954489469077378 ~1983
1954543469090338 ~1983
1954613117276798 ~1981
1954627195462718 ~1982
195467939093597 ~1980
1954691156375298 ~1982
1954709156376738 ~1982
1954709273659278
195476339095277 ~1980
1954819664638478 ~1983
1954987469196898 ~1983
195518339103677 ~1980
1955203821185278 ~1983
1955251312840178 ~1982
195527939105597 ~1980
1955279977639518
1955417117325038 ~1981
1955531156442498 ~1982
19555311095097379
195554339110877 ~1980
1955671821381838 ~1983
195571139114237 ~1980
384
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25-10-26