1 902 643 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
35649502323081721	17	55.0	old
89338778275924979908123153	26	86.2	2020-09-04 04:05:12

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	106 / 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)	2017-10-04	Oliver Kruse	8C862D6BF91F6932	1	0	1	3
Verified (Factored)	2017-11-09	kkmrkkblmbrbk	8C862D6BF91F6932	1	198835	1	3
Verified	2020-09-07	nordi	3703B300EB998289	2	898163	5	3
Verified	2020-09-08	marssystems	3703B300EB998289	2	1652183	5	3

History

Date	User	Type	Result
2020-09-08	marssystems	C-PRP	M1902643/35649502323081721/89338778275924979908123153 : 3703B300EB998289 PRP: Verified PRP without proof (not generated)
2020-09-07	nordi	C-PRP	M1902643/35649502323081721/89338778275924979908123153 : 3703B300EB998289 PRP: Verified PRP without proof (not generated)
2020-09-04	_p95holder_	F-ECM	Factor: 89338778275924979908123153 / (ECM curve 2, B1=50000, B2=5000000)
2017-11-09	kkmrkkblmbrbk	C-PRP	M1902643/35649502323081721 : 8C862D6BF91F6932 PRP: Verified PRP without proof (not generated)
2017-10-04	Oliver Kruse	C-PRP	M1902643/35649502323081721 : 8C862D6BF91F6932 PRP: Verified PRP without proof (not generated)
2016-03-16	alpertron	NF-PM1	B1=500000, B2=15000000, E=12