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

PrimeNet Exponent Status

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MnStatusDetails
14723Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
5364067083968030428114378757257233367077896567330162319156185.12023-06-13 12:32:18
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000009201 / 9201
504400000010035 / 16550
Estimated T-Level: 48.0 ⓘ
TF below 2^155 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Unknown2B520
Verified (Factored)George WoltmanD3ECC51146EC2B520
Verified (Factored)Brian J. BeesleyD3ECC51146EC2B520
Verified (Factored)2015-04-11MadPooD3ECC51146EC2B524424
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2023-06-13Naegi Makoto016D7CA0CBFFE8F01164453
Verified2023-06-15/r/counting016D7CA0CBFFE8F011314053
History
DateUserTypeResult
2023-06-15/r/countingC-PRP
M14723/53640670839680304281143787572572333670778965673301623191 : 016D7CA0CBFFE8F0
PRP: Verified
PRP without proof (small exponent)
2023-06-13Naegi MakotoC-PRP
M14723/53640670839680304281143787572572333670778965673301623191 : 016D7CA0CBFFE8F0
PRP: Verified
PRP without proof (small exponent)
2023-06-13Ryan PropperF-ECM
Factor: 53640670839680304281143787572572333670778965673301623191 / (ECM curve 1, B1=110000000, B2=820858548526, Sigma=10902941312430615040)
2023-04-16-Anonymous-NF-PM1
B1=1000000000000, B2=1401075893663576130
2022-03-26-Anonymous-NF-PM1
B1=100000000000, B2=100013732677278420
2021-11-20Ruslan BorisovNF
no factor from 2^65 to 2^66
2021-05-11ATHNF-PP1
Start=2/7, B1=1000000000, B2=241000000000
2018-12-24Anton RepkoNF
no factor from 2^64 to 2^65
2018-08-28Anton RepkoNF
no factor from 2^63 to 2^64
2018-06-20James HintzNF-PM1
B1=23515340287, B2=1763650521525, E=12
2016-07-19Sid & AndyNF
no factor from 2^62 to 2^63
2016-02-23LaurVNF
no factor from 2^57 to 2^58
2015-08-03snme2pm1NF
no factor from 2^61 to 2^62
2015-04-11MadPooC-LL
D3ECC51146EC2B52
2013-03-30bcp19NF-PM1
B1=10000000000, B2=100000000000, E=12
2012-12-25bcp19NF
no factor from 2^60 to 2^61
2012-10-12JossNF-PM1
B1=584608539
2011-05-18JossNF-PM1
B1=400000000
2010-07-04George WoltmanNF
no factor from 2^59 to 2^60
2010-07-04George WoltmanNF
no factor from 2^58 to 2^59