Marin Mersenne 2^P-1
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Finding World Record Primes Since 1996

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MnStatusDetails
275543Composite, with 4 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
8330700931691239.6old
3103012769482091548.12014-03-27 11:23:40
191790594155179921687119432684.02017-10-13 13:35:09
954946239418077460136889077932996.32015-10-09 10:36:36
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
351000000178 / 1566
Estimated T-Level: 30.6 ⓘ
TF below 2^97 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified (Factored)2017-09-22Oliver Kruse77C53BB70276730C3013
Verified (Factored)2017-10-13kkmrkkblmbrbk77C53BB70276730C38419113
Verified2017-10-13kkmrkkblmbrbk477DA27D823EB112414533653
Verified2017-10-14kkmrkkblmbrbk3EAF0873E21E48E4410899513
Verified2017-10-14Yaroslav Berezhko3EAF0873E21E48E44013
Verified2017-10-14kkmrkkblmbrbk3EAF0873E21E48E4413187413
Verified2017-11-03ATH477DA27D823EB112425813553
History
DateUserTypeResult
2024-10-30yuriy_5-1NF-PM1
B1=25349956, B2=6224556508170
2022-04-05JossNF-PM1
B1=1000000, B2=103121878860
2022-01-03Lisander ViaeneNF-PM1
B1=100000
2021-04-22nordiNF-PP1
Start=2/7, B1=10000000, B2=1000000000
2017-11-03ATHC-PRP
M275543/833070093169/310301276948209/19179059415517992168711943/95494623941807746013688907793 : 477DA27D823EB112
PRP: Verified
PRP without proof (small exponent)
2017-10-14kkmrkkblmbrbkC-PRP
M275543/833070093169/310301276948209/95494623941807746013688907793/19179059415517992168711943 : 3EAF0873E21E48E4
PRP: Verified
PRP without proof (small exponent)
2017-10-14Yaroslav BerezhkoC-PRP
M275543/833070093169/310301276948209/19179059415517992168711943/95494623941807746013688907793 : 3EAF0873E21E48E4
PRP: Verified
PRP without proof (not generated)
2017-10-14kkmrkkblmbrbkC-PRP
M275543/833070093169/310301276948209/95494623941807746013688907793/19179059415517992168711943 : 3EAF0873E21E48E4
PRP: Verified
PRP without proof (small exponent)
2017-10-13kkmrkkblmbrbkC-PRP
M275543/833070093169/310301276948209/95494623941807746013688907793/19179059415517992168711943 : 477DA27D823EB112
PRP: Verified
PRP without proof (small exponent)
2017-10-13TJAOIF-ECM
Factor: 19179059415517992168711943 / (ECM curve 26, B1=250000, B2=25000000)
2017-10-13kkmrkkblmbrbkC-PRP
M275543/833070093169/310301276948209/95494623941807746013688907793 : 77C53BB70276730C
PRP: Verified
PRP without proof (small exponent)
2017-09-22Oliver KruseC-PRP
M275543/known_factors : 77C53BB70276730C
PRP without proof (not generated)
2015-10-09TJAOIF-ECM
Factor: 95494623941807746013688907793 / (ECM curve 83, B1=50000, B2=5000000)
2014-03-27TJAOIF
Factor: 310301276948209