1 380 623 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
109003433075297	15	46.6	old
5707474386080561	16	52.3	2014-08-05 10:30:13
1001955294427220627089	22	69.8	2018-07-29 18:59:38

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	F93E7EE79366A029	2	0	1	3
Verified (Factored)	2017-11-04	kkmrkkblmbrbk	F93E7EE79366A029	2	245530	1	3
Verified	2018-08-02	Oliver Kruse	9240DC8757B1B192	3	1084317	5	3
Verified	2018-08-03	kkmrkkblmbrbk	9240DC8757B1B192	3	441185	5	3

History

Date	User	Type	Result
2018-08-03	kkmrkkblmbrbk	C-PRP	M1380623/109003433075297/5707474386080561/1001955294427220627089 : 9240DC8757B1B192 PRP: Verified PRP without proof (not generated)
2018-08-02	Oliver Kruse	C-PRP	M1380623/109003433075297/5707474386080561/1001955294427220627089 : 9240DC8757B1B192 PRP: Verified PRP without proof (not generated)
2018-07-29	Chang Chia-Tche	F-ECM	Factor: 1001955294427220627089 / (ECM curve 3, B1=50000, B2=5000000)
2017-11-04	kkmrkkblmbrbk	C-PRP	M1380623/109003433075297/5707474386080561 : F93E7EE79366A029 PRP: Verified PRP without proof (not generated)
2017-09-30	Oliver Kruse	C-PRP	M1380623/109003433075297/5707474386080561 : F93E7EE79366A029 PRP: Verified PRP without proof (not generated)
2014-08-05	TJAOI	F	Factor: 5707474386080561