1 780 481 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
5085053737	10	32.2	old
19068951511	11	34.2	2008-07-15 07:46:32
1643966052092369	16	50.5	2014-06-03 11:25:49
24311029838681384251303	23	74.4	2020-07-17 19:22:58

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	107 / 640

Estimated T-Level: 25.8 ⓘ

TF below 2^81 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-10-03	Oliver Kruse	56B5059B61A3E9A7	3	0	1	3
Verified (Factored)	2017-11-04	kkmrkkblmbrbk	56B5059B61A3E9A7	3	238922	1	3
Verified	2020-07-18	xyuzyz	C01DD731ABF041F3	4	1081531	5	3
Verified	2020-07-19	marssystems	C01DD731ABF041F3	4	71712	5	3

History

Date	User	Type	Result
2020-07-19	marssystems	C-PRP	M1780481/5085053737/19068951511/1643966052092369/24311029838681384251303 : C01DD731ABF041F3 PRP: Verified PRP without proof (not generated)
2020-07-18	xyuzyz	C-PRP	M1780481/5085053737/19068951511/1643966052092369/24311029838681384251303 : C01DD731ABF041F3 PRP: Verified PRP without proof (not generated)
2020-07-17	_p95holder_	F-ECM	Factor: 24311029838681384251303 / (ECM curve 2, B1=50000, B2=5000000)
2017-11-04	kkmrkkblmbrbk	C-PRP	M1780481/5085053737/19068951511/1643966052092369 : 56B5059B61A3E9A7 PRP: Verified PRP without proof (not generated)
2017-10-03	Oliver Kruse	C-PRP	M1780481/5085053737/19068951511/1643966052092369 : 56B5059B61A3E9A7 PRP: Verified PRP without proof (not generated)
2016-03-16	alpertron	NF-PM1	B1=500000, B2=15000000, E=12
2014-06-03	TJAOI	F	Factor: 1643966052092369
2008-07-15	J Feitsma	F	Factor: 19068951511