1 318 703 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
22685594960881	14	44.4	old
31995707160595559400073	23	74.8	2018-06-08 13:19:52
1458986986443608161961740351271	31	100.2	2021-06-26 09:32:12

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)	2017-09-30	Oliver Kruse	F9F8688041DAFEA1	1	0	1	3
Verified (Factored)	2017-10-23	kkmrkkblmbrbk	F9F8688041DAFEA1	1	887732	1	3
Verified (Factored)	2018-06-10	Daniil Tsarkov	AF5317C1D1391002	2	839809	5	3
Verified (Factored)	2018-06-15	Gabriel Lignelli	AF5317C1D1391002	2	974540	5	3
Verified	2021-06-26	RichD0	AF5317C1D1391002	3	730965	5	3

History

Date	User	Type	Result
2021-06-26	Stef42	CERT	PRP Certification Proof certified good
2021-06-26	RichD0	C-PRP	M1318703/22685594960881/31995707160595559400073/1458986986443608161961740351271 : AF5317C1D1391002 PRP proof power = 6 PRP: Verified Proof certified good
2021-06-26	TJAOI	F-ECM	Factor: 1458986986443608161961740351271 / (ECM curve 18, B1=250000, B2=35000000)
2018-06-15	Gabriel Lignelli	C-PRP	M1318703/22685594960881/31995707160595559400073 : AF5317C1D1391002 PRP: Verified (Factored) PRP without proof (not generated)
2018-06-10	Daniil Tsarkov	C-PRP	M1318703/22685594960881/31995707160595559400073 : AF5317C1D1391002 PRP: Verified (Factored) PRP without proof (not generated)
2018-06-08	TJAOI	F-ECM	Factor: 31995707160595559400073 / (ECM curve 68, B1=50000, B2=5000000)
2017-10-23	kkmrkkblmbrbk	C-PRP	M1318703/22685594960881 : F9F8688041DAFEA1 PRP: Verified (Factored) PRP without proof (not generated)
2017-09-30	Oliver Kruse	C-PRP	M1318703/22685594960881 : F9F8688041DAFEA1 PRP: Verified (Factored) PRP without proof (not generated)
2016-03-17	alpertron	NF-PM1	B1=500000, B2=15000000, E=12