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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
998872791997745599 ~1993
998880591997761199 ~1993
998900511997801039 ~1993
998910735993464399 ~1995
998918391997836799 ~1993
998921415993528479 ~1995
99892417159827867310 ~1996
998938311997876639 ~1993
99894449239746677710 ~1996
998993991997987999 ~1993
999012535994075199 ~1995
999053391998106799 ~1993
999065391998130799 ~1993
999085191998170399 ~1993
999103191998206399 ~1993
999119391998238799 ~1993
999123897992991139 ~1995
999124135994744799 ~1995
999167877993342979 ~1995
999170391998340799 ~1993
999193311998386639 ~1993
999193431998386879 ~1993
999199971338927959911 ~1998
999204135995224799 ~1995
999213831998427679 ~1993
Exponent Prime Factor Digits Year
999220377993762979 ~1995
999295791998591599 ~1993
999298311998596639 ~1993
999301917994415299 ~1995
999326031998652079 ~1993
999364431998728879 ~1993
999446391998892799 ~1993
99946459179903626310 ~1996
999487015996922079 ~1995
999506391999012799 ~1993
999513111999026239 ~1993
999544431999088879 ~1993
999553191999106399 ~1993
999574911999149839 ~1993
999598191999196399 ~1993
999621711999243439 ~1993
99962353239909647310 ~1996
999657597997260739 ~1995
999663711999327439 ~1993
99968809939706804710 ~1998
999694815998168879 ~1995
999713277997706179 ~1995
999748791999497599 ~1993
999772911999545839 ~1993
999869631999739279 ~1993
Exponent Prime Factor Digits Year
99988289139983604710 ~1996
999887535999325199 ~1995
999895017999160099 ~1995
999902631999805279 ~1993
999923631999847279 ~1993
999927711999855439 ~1993
999943791999887599 ~1993
999947031999894079 ~1993
999959991999919999 ~1993
999964191999928399 ~1993
999984975999909839 ~1995
100000543160000868910 ~1996
1000016512000033039 ~1993
1000028392000056799 ~1993
1000061032000122079 ~1993
1000075432000150879 ~1993
1000078136000468799 ~1995
1000133512000267039 ~1993
1000149118001192899 ~1995
1000156136000936799 ~1995
1000157392000314799 ~1993
1000167832000335679 ~1993
1000171192000342399 ~1993
1000203832000407679 ~1993
100021973300065919110 ~1996
Exponent Prime Factor Digits Year
1000224592000449199 ~1993
1000292392000584799 ~1993
1000293832000587679 ~1993
1000305898002447139 ~1995
1000314712000629439 ~1993
1000347712000695439 ~1993
1000383112000766239 ~1993
1000385392000770799 ~1993
1000393432000786879 ~1993
1000398376002390239 ~1995
1000400512000801039 ~1993
100044281320141699310 ~1996
100046753140065454310 ~1996
1000481992000963999 ~1993
100051951100051951110 ~1995
1000530712001061439 ~1993
1000536376003218239 ~1995
1000550512001101039 ~1993
1000572832001145679 ~1993
1000607576003645439 ~1995
1000671112001342239 ~1993
1000719712001439439 ~1993
1000721512001443039 ~1993
1000723976004343839 ~1995
100073539180132370310 ~1996
2634
GIMPS The Prime Pages FactorDb.com
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26-02-08