890 159 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
35940396572242325287	20	65.0	old
2882460702024023720406834553	28	91.2	2024-03-09 17:15:04

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	100 / 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
composite	Verified (Factored)	2017-09-28	Oliver Kruse	55197060562B746B	1	0	1	3
composite	Verified (Factored)	2017-10-14	Oliver Kruse	55197060562B746B	1	411034	1	3
composite	Verified (Factored)	2017-12-19	ATH	55197060562B746B	1	738119	1	3
composite	Verified (Factored)	2020-04-22	Oliver Kruse	0927EE0973DA2676	1	765297	5	3
composite	Verified	2024-03-09	Anton Tsvetkov	0927EE0973DA2676	2	629194	5	3

P-1 factors

Date	Factor	B1	B2
2024-03-09	2882460702024023720406834553	8000000	10020002850

History

Date	User	Type	Result
2024-03-09	arnaud	CERT	PRP Certification Proof certified good
2024-03-09	Anton Tsvetkov	C-PRP	M890159/35940396572242325287/2882460702024023720406834553 : 0927EE0973DA2676 PRP proof power = 6 PRP: Verified Proof certified good
2024-03-09	Anton Tsvetkov	F-PM1	Factor: 2882460702024023720406834553 / (P-1, B1=8000000, B2=10020002850)
2020-04-22	Oliver Kruse	C-PRP	M890159/35940396572242325287 : 0927EE0973DA2676 PRP: Verified (Factored) PRP without proof (small exponent)
2017-12-19	ATH	C-PRP	M890159/35940396572242325287 : 55197060562B746B PRP: Verified (Factored) PRP without proof (small exponent)
2017-10-14	Oliver Kruse	C-PRP	M890159/35940396572242325287 : 55197060562B746B PRP: Verified (Factored) PRP without proof (small exponent)
2017-09-28	Oliver Kruse	C-PRP	M890159/35940396572242325287 : 55197060562B746B PRP: Verified (Factored) PRP without proof (not generated)
2016-03-17	alpertron	NF-PM1	B1=300000, B2=10000000, E=12