12 143 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
474860011238359	15	48.8	old
45725358050522993	17	55.3	2008-08-29 02:24:29

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	640 / 640
35	1000000	1566 / 1566
40	3000000	4588 / 4588
45	11000000	1282 / 9201

Estimated T-Level: 40.7 ⓘ

TF below 2^130 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-21	Oliver Kruse	10E10B5E8793BBCF	2	0	1	3
Verified	2017-10-12	kkmrkkblmbrbk	10E10B5E8793BBCF	2	2611	1	3
Verified	2017-11-23	ANONYMOUS	CF651143C6B6B239	2	1708	5	3
Verified	2017-12-04	kkmrkkblmbrbk	CF651143C6B6B239	2	2493	5	3
Verified	2023-05-19	-Anonymous-	CF651143C6B6B239	2	1704	5	3

History

Date	User	Type	Result
2023-05-19	-Anonymous-	C-PRP	M12143/474860011238359/45725358050522993 : CF651143C6B6B239 PRP: Verified PRP without proof (small exponent)
2023-04-06	-Anonymous-	NF-PM1	B1=100000000000, B2=120942232635634410
2017-12-04	kkmrkkblmbrbk	C-PRP	M12143/474860011238359/45725358050522993 : CF651143C6B6B239 PRP: Verified PRP without proof (small exponent)
2017-11-23	ANONYMOUS	C-PRP	M12143/474860011238359/45725358050522993 : CF651143C6B6B239 PRP: Verified PRP without proof (small exponent)
2017-10-12	kkmrkkblmbrbk	C-PRP	M12143/474860011238359/45725358050522993 : 10E10B5E8793BBCF PRP: Verified PRP without proof (not generated)
2017-09-21	Oliver Kruse	C-PRP	M12143/474860011238359/45725358050522993 : 10E10B5E8793BBCF PRP: Verified PRP without proof (not generated)
2017-09-21	Oliver Kruse	C-PRP	M12143/474860011238359/45725358050522993 : 10E10B5E8793BBCF PRP without proof (not generated)
2016-09-08	kkmrkkblmbrbk	NF-PM1	B1=100000000, B2=10000000000, E=12
2008-08-29	-Anonymous-	F-ECM	Factor: 45725358050522993