19 253 497 Exponent Status

Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
53101988605820230856537	23	75.5	2019-11-03 05:37:08

ECM

Digits	B1	Curves
25	50000	1 / 280

Estimated T-Level: 20.0 ⓘ

TF below 2^61 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)	2003-05-26	Jay Namon	814DB0D6060BA083	4480753
Verified (Factored)	2007-04-23	TheJudger	814DB0D6060BA083	19066327

History

Date	User	Type	Result
2019-11-03	Keysarecool	F-ECM	Factor: 53101988605820230856537 / (ECM curve 1, B1=50000, B2=5000000, Sigma=7345360905393512)
2017-11-22	ramgeis	NF	no factor from 2^68 to 2^69
2014-06-15	Nesowa	NF	no factor from 2^67 to 2^68
2014-06-15	Nesowa	NF	no factor from 2^66 to 2^67

Username
Password