1 939 351 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
148507742177	12	37.1	old
28818011149217	14	44.7	2014-01-10 14:40:34
10551019027702343	17	53.2	2014-09-11 11:39:18
41943836913002562065503	23	75.2	2015-09-22 14:35:43

ECM

Digits	B1	Curves
25	50000	267 / 280

Estimated T-Level: 24.8 ⓘ

TF below 2^77 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-10-05	Oliver Kruse	5EA6A1FE6BA288FE	4	0	1	3
Verified	2017-11-15	kkmrkkblmbrbk	5EA6A1FE6BA288FE	4	665502	1	3

P-1 factors

Date	Factor	B1	B2
2015-09-22	41943836913002562065503	500000	15000000

History

Date	User	Type	Result
2017-11-15	kkmrkkblmbrbk	C-PRP	M1939351/148507742177/28818011149217/10551019027702343/41943836913002562065503 : 5EA6A1FE6BA288FE PRP: Verified PRP without proof (not generated)
2017-10-05	Oliver Kruse	C-PRP	M1939351/148507742177/28818011149217/10551019027702343/41943836913002562065503 : 5EA6A1FE6BA288FE PRP: Verified PRP without proof (not generated)
2017-10-05	Oliver Kruse	C-PRP	M1939351/148507742177/28818011149217/10551019027702343/41943836913002562065503 : 5EA6A1FE6BA288FE PRP without proof (not generated)
2015-09-22	alpertron	F-PM1	Factor: 41943836913002562065503 / (P-1, B1=500000, B2=15000000, E=12)
2014-09-11	TJAOI	F	Factor: 10551019027702343 / TF: 53-54
2014-01-10	TJAOI	F	Factor: 28818011149217