1 322 203 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
605391798799	12	39.1	old
2243818548462089	16	51.0	2014-06-13 11:45:24
205982041796778089	18	57.5	2015-01-23 11:53:13
618125228907979616180377	24	79.0	2018-06-01 11:34:34

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	E09391D3A07C5E50	3	0	1	3
Verified (Factored)	2017-10-23	kkmrkkblmbrbk	E09391D3A07C5E50	3	114725	1	3
Verified	2018-06-03	ANONYMOUS	F0D7F7802792B98C	4	504257	5	3
Verified	2018-06-07	_p95holder_	F0D7F7802792B98C	4	1198257	5	3

P-1 factors

Date	Factor	B1	B2
2015-01-23	205982041796778089	500000	15000000

History

Date	User	Type	Result
2018-06-07	_p95holder_	C-PRP	M1322203/605391798799/2243818548462089/205982041796778089/618125228907979616180377 : F0D7F7802792B98C PRP: Verified PRP without proof (not generated)
2018-06-03	ANONYMOUS	C-PRP	M1322203/605391798799/2243818548462089/205982041796778089/618125228907979616180377 : F0D7F7802792B98C PRP: Verified PRP without proof (not generated)
2018-06-01	TJAOI	F-ECM	Factor: 618125228907979616180377 / (ECM curve 108, B1=50000, B2=5000000)
2017-10-23	kkmrkkblmbrbk	C-PRP	M1322203/605391798799/2243818548462089/205982041796778089 : E09391D3A07C5E50 PRP: Verified PRP without proof (not generated)
2017-10-05	Oliver Kruse	C-PRP	M1322203/605391798799/2243818548462089/205982041796778089 : E09391D3A07C5E50 PRP: Verified PRP without proof (not generated)
2017-09-30	Oliver Kruse	C-PRP	M1322203/605391798799/2243818548462089/205982041796778089 : E09391D3A07C5E50 PRP without proof (not generated)
2015-01-23	alpertron	F-PM1	Factor: 205982041796778089 / (P-1, B1=500000, B2=15000000, E=12)
2014-06-13	TJAOI	F	Factor: 2243818548462089