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:










MnStatusDetails
101001001Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 280
TF target 276
P-1
B1 = 5000000
B2 = 500000000
LL
StatusDateUserResidueShift
Bad2009-09-09Serge BatalovFDD1FBABAB6840D323804255
Verified2011-01-16msft03656AE02E5117F10
Verified2012-01-08Ethan O'Connor03656AE02E5117F178687523
Bad2018-02-18Himanshu_KushwahaA3E025CE61D857362004982
History
DateUserTypeResult
2025-07-10DobriNF
no factor from 2^79 to 2^80
2025-06-27DobriNF
no factor from 2^78 to 2^79
2025-06-25DobriNF
no factor from 2^74 to 2^77
2025-06-25DobriNF
no factor from 2^72 to 2^74
2025-06-25DobriNF
no factor from 2^1 to 2^72
2025-06-24DobriNF
no factor from 2^77 to 2^78
2018-02-18Himanshu_KushwahaC-LL
A3E025CE61D85736
2012-01-08Ethan O'ConnorC-LL
03656AE02E5117F1
2011-12-10Ethan O'ConnorNF-PM1
B1=5000000, B2=500000000
2011-10-23Serge BatalovNF-PM1
B1=2130000, B2=74007500, E=6
2011-10-21Serge BatalovNF
no factor from 2^76 to 2^77
2011-10-15Serge BatalovNF
no factor from 2^75 to 2^76
2011-10-13Serge BatalovNF
no factor from 2^74 to 2^75
2011-10-11-Anonymous-NF
no factor from 2^73 to 2^74
2011-10-11Serge BatalovNF
no factor from 2^72 to 2^73
2011-01-16msftC-LL
03656AE02E5117F1
2009-09-09Serge BatalovC-LL
FDD1FBABAB6840D3
2008-12-21Serge BatalovNF-PM1
B1=1130000, B2=37007500
2008-10-06Serge BatalovNF
no factor from 2^71 to 2^72
2008-10-03Serge BatalovNF
no factor from 2^70 to 2^71
2008-09-09Serge BatalovNF
no factor from 2^69 to 2^70
2008-09-09Serge BatalovNF
no factor from 2^68 to 2^69
2008-09-09Serge BatalovNF
no factor from 2^67 to 2^68
2008-09-09Serge BatalovNF
no factor from 2^66 to 2^67