1 457 683 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
53281229017	11	35.6	old
21604066106159	14	44.3	2008-08-26 20:19:17
40966500686017422647	20	65.2	2018-06-28 12:10:47
464007224896671696871	21	68.7	2019-03-08 12:29:17

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)	2017-10-01	Oliver Kruse	71AD2699FED1238D	2	0	1	3
Verified (Factored)	2017-10-27	Chang Chia-Tche	71AD2699FED1238D	2	784726	1	3
Verified (Factored)	2018-06-28	_p95holder_	B3C17FDD4716B6BA	3	974785	5	3
Verified (Factored)	2018-07-06	Oliver Kruse	B3C17FDD4716B6BA	3	230191	5	3
Verified	2019-03-10	ANONYMOUS	B3C17FDD4716B6BA	4	432523	5	3

History

Date	User	Type	Result
2019-03-10	ANONYMOUS	C-PRP	M1457683/53281229017/21604066106159/40966500686017422647/464007224896671696871 : B3C17FDD4716B6BA PRP: Verified PRP without proof (not generated)
2019-03-08	TJAOI	F-ECM	Factor: 464007224896671696871 / (ECM curve 5, B1=50000, B2=5000000)
2018-07-06	Oliver Kruse	C-PRP	M1457683/53281229017/21604066106159/40966500686017422647 : B3C17FDD4716B6BA PRP: Verified PRP without proof (not generated)
2018-06-28	_p95holder_	C-PRP	M1457683/53281229017/21604066106159/40966500686017422647 : B3C17FDD4716B6BA PRP: Verified PRP without proof (not generated)
2018-06-28	TJAOI	F	Factor: 40966500686017422647 / TF: 65-66
2017-10-27	Chang Chia-Tche	C-PRP	M1457683/53281229017/21604066106159 : 71AD2699FED1238D PRP: Verified PRP without proof (not generated)
2017-10-01	Oliver Kruse	C-PRP	M1457683/53281229017/21604066106159 : 71AD2699FED1238D PRP: Verified PRP without proof (not generated)
2016-03-17	alpertron	NF-PM1	B1=500000, B2=15000000, E=12
2008-08-26	-Anonymous-	F	Factor: 21604066106159