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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
24978911499578238 ~1989
24979079499581598 ~1989
249791091998328739 ~1990
24980303499606078 ~1989
249807078493440399 ~1992
24981119499622398 ~1989
24981263499625278 ~1989
249813798493668879 ~1992
24981479499629598 ~1989
24981851499637038 ~1989
249819171498915039 ~1990
249823874496829679 ~1991
24982631499652638 ~1989
24982679499653598 ~1989
24983363499667278 ~1989
249842411499054479 ~1990
24984779499695598 ~1989
249849971499099839 ~1990
24985043499700878 ~1989
249850493497906879 ~1991
24985403499708078 ~1989
249860897495826719 ~1992
24986459499729198 ~1989
24986519499730398 ~1989
24986723499734478 ~1989
Exponent Prime Factor Digits Year
249869531499217199 ~1990
24987359499747198 ~1989
249873831879051201711 ~1995
249874394497739039 ~1991
249876079995042819 ~1992
249878811499272879 ~1990
24987899499757998 ~1989
24987971499759438 ~1989
24988091499761838 ~1989
249880995997143779 ~1991
24988559499771198 ~1989
24988571499771438 ~1989
249886273998180339 ~1991
24988871499777438 ~1989
249889611999116899 ~1990
24990071499801438 ~1989
249901512499015119 ~1990
249907039996281219 ~1992
24991091499821838 ~1989
249913671999309379 ~1990
24991619499832398 ~1989
24991679499833598 ~1989
24991727119960289710 ~1992
24991979499839598 ~1989
249920592499205919 ~1990
Exponent Prime Factor Digits Year
24992183499843678 ~1989
24992351499847038 ~1989
249923931499543599 ~1990
24992483499849678 ~1989
24992557134959807910 ~1992
24993131499862638 ~1989
249940195998564579 ~1991
24995111499902238 ~1989
24995471499909438 ~1989
249962712499627119 ~1990
24996551499931038 ~1989
24996971499939438 ~1989
24997859499957198 ~1989
24998399499967998 ~1989
249985733499800239 ~1991
24998843499976878 ~1989
249990771499944639 ~1990
24999083499981678 ~1989
24999731499994638 ~1989
250000331500001999 ~1990
25000691500013838 ~1989
250006912000055299
25001783500035678 ~1989
250018331500109999 ~1990
250019811500118879 ~1990
Exponent Prime Factor Digits Year
25002083500041678 ~1989
25002179500043598 ~1989
25002443500048878 ~1989
25002779500055598 ~1989
25003799500075998 ~1989
25004411500088238 ~1989
25004459500089198 ~1989
250045577501367119 ~1992
25004939500098798 ~1989
25005131500102638 ~1989
25005191500103838 ~1989
250053531500321199 ~1990
250055832500558319 ~1990
250058896001413379 ~1991
250060971500365839 ~1990
250065912500659119 ~1990
25007159500143198 ~1989
25007711500154238 ~1989
25008323500166478 ~1989
25008551500171038 ~1989
25008611500172238 ~1989
25008803500176078 ~1989
25009511500190238 ~1989
25009811500196238 ~1989
250101912501019119 ~1990
1644
GIMPS The Prime Pages FactorDb.com
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25-12-14