1 835 527 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
1987688517247	13	40.9	old
35974930347041589689831	23	74.9	2015-08-30 19:09:28

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	2017-09-30	alpertron	4C2170D2EE929707	2	0	1	3
Verified	2017-10-19	Oliver Kruse	4C2170D2EE929707	2	136758	1	3

P-1 factors

Date	Factor	B1	B2
2015-08-30	35974930347041589689831	500000	15000000

History

Date	User	Type	Result
2017-10-19	Oliver Kruse	C-PRP	M1835527/1987688517247/35974930347041589689831 : 4C2170D2EE929707 PRP: Verified PRP without proof (not generated)
2017-09-30	alpertron	C-PRP	M1835527/1987688517247/35974930347041589689831 : 4C2170D2EE929707 PRP: Verified PRP without proof (not generated)
2015-08-30	alpertron	F-PM1	Factor: 35974930347041589689831 / (P-1, B1=500000, B2=15000000, E=12)