1 448 779 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
60848719	8	25.9	old
26379368033	11	34.6	2008-07-15 09:59:44
41025060259732044647	20	65.2	2018-06-28 12:17:08
37016427105540540010013953	26	84.9	2015-03-04 17:21:51

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	105 / 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)	2017-10-05	Oliver Kruse	1BDBBAA20BCEC413	3	0	1	3
Verified (Factored)	2017-10-27	kkmrkkblmbrbk	1BDBBAA20BCEC413	3	509131	1	3
Verified	2018-06-28	_p95holder_	F855E6668F6777DF	4	153836	5	3
Verified	2018-06-28	ATH	F855E6668F6777DF	4	1440129	5	3

P-1 factors

Date	Factor	B1	B2
2015-03-04	37016427105540540010013953	500000	15000000

History

Date	User	Type	Result
2018-06-28	ATH	C-PRP	M1448779/60848719/26379368033/37016427105540540010013953/41025060259732044647 : F855E6668F6777DF PRP: Verified PRP without proof (not generated)
2018-06-28	_p95holder_	C-PRP	M1448779/60848719/26379368033/41025060259732044647/37016427105540540010013953 : F855E6668F6777DF PRP: Verified PRP without proof (not generated)
2018-06-28	TJAOI	F	Factor: 41025060259732044647 / TF: 65-66
2017-10-27	kkmrkkblmbrbk	C-PRP	M1448779/60848719/26379368033/37016427105540540010013953 : 1BDBBAA20BCEC413 PRP: Verified PRP without proof (not generated)
2017-10-05	Oliver Kruse	C-PRP	M1448779/60848719/26379368033/37016427105540540010013953 : 1BDBBAA20BCEC413 PRP: Verified PRP without proof (not generated)
2017-10-01	Oliver Kruse	C-PRP	M1448779/60848719/26379368033/37016427105540540010013953 : 1BDBBAA20BCEC413 PRP without proof (not generated)
2015-03-04	alpertron	F-PM1	Factor: 37016427105540540010013953 / (P-1, B1=500000, B2=15000000, E=12)
2008-07-15	J Feitsma	F	Factor: 26379368033