1 969 801 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
33097049456231	14	44.9	old
15704515785024383	17	53.8	2014-10-13 11:51:43
129309763707259641391	21	66.8	2019-03-26 08:50:20

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	106 / 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)	2017-10-02	alpertron	5927CD1A9D253DA3	2	0	1	3
Verified (Factored)	2017-10-20	Oliver Kruse	5927CD1A9D253DA3	2	443332	1	3
Verified	2019-03-27	artorollo	CD478A610DFCFA28	3	1738940	5	3
Verified	2019-03-27	kkmrkkblmbrbk	CD478A610DFCFA28	3	550964	5	3

History

Date	User	Type	Result
2023-10-16	USAFSS	NF-PM1	B1=672000, B2=647447724
2022-08-12	USAFSS	NF-PM1	B1=132000, B2=134381520
2019-03-27	kkmrkkblmbrbk	C-PRP	M1969801/33097049456231/15704515785024383/129309763707259641391 : CD478A610DFCFA28 PRP: Verified PRP without proof (not generated)
2019-03-27	artorollo	C-PRP	M1969801/33097049456231/15704515785024383/129309763707259641391 : CD478A610DFCFA28 PRP: Verified PRP without proof (not generated)
2019-03-26	MarkS	F-ECM	Factor: 129309763707259641391 / (ECM curve 1, B1=50000, B2=5000000)
2017-10-20	Oliver Kruse	C-PRP	M1969801/33097049456231/15704515785024383 : 5927CD1A9D253DA3 PRP: Verified PRP without proof (not generated)
2017-10-02	alpertron	C-PRP	M1969801/33097049456231/15704515785024383 : 5927CD1A9D253DA3 PRP: Verified PRP without proof (not generated)
2014-10-13	TJAOI	F	Factor: 15704515785024383 / TF: 53-54