Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:





MnDetails
4937
Composite, with 1 known prime factor. Cofactor is composite.
Trial Factored to 268
TF target 244
Factored
FactorDigitsBitsDate
22420940003389000993183748828404971163692526056148157.32009-06-02 00:57:58
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000009201 / 9201
504400000016550 / 16550
5511000000015780 / 40830
Estimated T-Level: 51.9 ⓘ
TF below 2^168 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShiftSoftware
FactoredUnknown2D550Unknown,(aka U)
FactoredGeorge WoltmanF98FEBBF3C0A2D550Woltman,Prime95,first web release,(aka W4)
FactoredBrian J. BeesleyF98FEBBF3C0A2D550Mac,John Sweeney,v1.4,(aka J3)
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors		ShiftTypeBase
Verified
No proof (small exponent)
2017-09-21Oliver KruseFC88DF1B88895A3F1013
Verified
No proof (small exponent)
2017-10-02kkmrkkblmbrbkFC88DF1B88895A3F1013
Verified
No proof (small exponent)
2017-12-07ATHFC88DF1B88895A3F1207213
Verified
No proof (small exponent)
2020-04-17Oliver Kruse07705AC08874DF591421953
Verified
No proof (small exponent)
2024-02-03Wentao Huang07705AC08874DF59150153
History
DateUserTypeResult
2025-05-22masserNF-PP1Start=147/29, B1=2100000000, B2=2097900000000
2024-02-03Wentao HuangC-PRPM4937/224209400033890009931837488284049711636925260561 : 07705AC08874DF59
2023-05-31-anonymous-NF-PM1B1=64000000000, B2=642189744639793350
2021-05-18firejugglerNF-PM1B1=100000000, B2=6100000000
2020-04-17Oliver KruseC-PRPM4937/224209400033890009931837488284049711636925260561 : 07705AC08874DF59
2017-12-07ATHC-PRPM4937/224209400033890009931837488284049711636925260561 : FC88DF1B88895A3F
2017-10-02kkmrkkblmbrbkC-PRPM4937/224209400033890009931837488284049711636925260561 : FC88DF1B88895A3F
2017-09-21Oliver KruseC-PRPM4937/known_factors : FC88DF1B88895A3F
2009-06-02unconnectedF-ECMFactor: 224209400033890009931837488284049711636925260561
2003-01-16-anonymous-NF-PM1B1=4290000000
2003-01-09-anonymous-NFno factor TF: 1-57
2002-09-29-anonymous-NF-PM1B1=3221225472, B2=4290000000, E=48
2002-08-10-anonymous-NF-PM1B1=2147483648, B2=4290000000, E=48
2002-06-02-anonymous-NF-PM1B1=1073741824, B2=4290000000, E=48
2001-07-17-anonymous-NF-PM1B1=3000000000, B2=4290000000
2001-06-17-anonymous-NF-PM1B1=43000000, B2=4290000000
2001-02-11-anonymous-NF-PM1B1=1000000, B2=100000000
2000-02-16-anonymous-NFno factor TF: 54-55