1 297 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
12097392013313	14	43.5	old
64873964199444497	17	55.8	old
80025868895687041966359471596981171570268166357936741924913	59	195.7	2014-05-22 16:36:12

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	640 / 640
35	1000000	1566 / 1566
40	3000000	4588 / 4588
45	11000000	9201 / 9201
50	44000000	16550 / 16550
55	110000000	40830 / 40830
60	260000000	105362 / 105362
65	800000000	68568 / 194238

Estimated T-Level: 61.8 ⓘ

TF below 2^200 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-27	Oliver Kruse	99F91E3D7D7EF4AD	3	0	1	3
Verified	2017-10-09	Chang Chia-Tche	99F91E3D7D7EF4AD	3	0	1	3
Verified	2017-10-12	kkmrkkblmbrbk	99F91E3D7D7EF4AD	3	1239	1	3
Verified	2020-04-17	Oliver Kruse	48EB49ACA86A0E4B	3	1125	5	3
Verified	2020-08-12	_p95holder_	48EB49ACA86A0E4B	3	320	5	3

History

Date	User	Type	Result
2021-07-19	ViliamF	NF-PP1	Start=2/7, B1=1000000000, B2=221000000000
2021-03-27	nordi	NF-PM1	B1=1000000000000, B2=2232843418649129478
2020-08-12	_p95holder_	C-PRP	M1297/12097392013313/64873964199444497/80025868895687041966359471596981171570268166357936741924913 : 48EB49ACA86A0E4B PRP: Verified PRP without proof (small exponent)
2020-04-17	Oliver Kruse	C-PRP	M1297/12097392013313/64873964199444497/80025868895687041966359471596981171570268166357936741924913 : 48EB49ACA86A0E4B PRP: Verified PRP without proof (small exponent)
2017-10-12	kkmrkkblmbrbk	C-PRP	M1297/12097392013313/64873964199444497/80025868895687041966359471596981171570268166357936741924913 : 99F91E3D7D7EF4AD PRP: Verified PRP without proof (not generated)
2017-10-09	Chang Chia-Tche	C-PRP	M1297/known_factors : 99F91E3D7D7EF4AD PRP: Verified PRP without proof (not generated)
2017-09-27	Oliver Kruse	C-PRP	M1297/12097392013313/64873964199444497/80025868895687041966359471596981171570268166357936741924913 : 99F91E3D7D7EF4AD PRP: Verified PRP without proof (not generated)
2017-09-25	csaba	C-PRP	M1297/known_factors : 99F91E3D7D7EF4AD PRP without proof (not generated)
2016-09-07	kkmrkkblmbrbk	NF-PM1	B1=1000000000, B2=100000000000, E=12
2014-05-22	-Anonymous-	F-ECM	Factor: 80025868895687041966359471596981171570268166357936741924913