1 877 857 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
8968645033	10	33.1	old
82956210833	11	36.3	2008-07-15 07:47:44
2370945884146541132183	22	71.0	2020-10-11 05:24:12

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	3BA075740DDF1E56	2	0	1	3
Verified (Factored)	2017-11-08	ATH	3BA075740DDF1E56	2	604228	1	3
Verified	2020-10-11	M Miller	D84DEB4D137718FF	3	564541	5	3

History

Date	User	Type	Result
2020-10-11	Ben Delo	CERT	PRP Certification Proof certified good
2020-10-11	M Miller	C-PRP	M1877857/8968645033/82956210833/2370945884146541132183 : D84DEB4D137718FF PRP proof power = 7 PRP: Verified Proof certified good
2020-10-11	nordi	F-ECM	Factor: 2370945884146541132183 / (ECM curve 3, B1=50000, B2=5000000, Sigma=2556881850846160)
2017-11-08	ATH	C-PRP	M1877857/8968645033/82956210833 : 3BA075740DDF1E56 PRP: Verified (Factored) PRP without proof (not generated)
2017-10-04	Oliver Kruse	C-PRP	M1877857/8968645033/82956210833 : 3BA075740DDF1E56 PRP: Verified (Factored) PRP without proof (not generated)
2016-03-16	alpertron	NF-PM1	B1=500000, B2=15000000, E=12
2008-07-15	J Feitsma	F	Factor: 82956210833