1 964 317 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
223350700169	12	37.7	old
1674782867894802494058199	25	80.5	2021-03-25 16:12:22

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)	2017-10-05	Oliver Kruse	6E37877F63E189F2	1	0	1	3
Verified (Factored)	2017-11-11	kkmrkkblmbrbk	6E37877F63E189F2	1	566541	1	3
Verified	2021-03-26	XZT	3EAE9340DE9615AE	2	161370	5	3

History

Date	User	Type	Result
2023-10-14	USAFSS	NF-PM1	B1=672000, B2=647447724
2022-08-12	USAFSS	NF-PM1	B1=132000, B2=134381520
2021-03-26	Ben Delo	CERT	PRP Certification Proof certified good
2021-03-26	XZT	C-PRP	M1964317/223350700169/1674782867894802494058199 : 3EAE9340DE9615AE PRP proof power = 7 PRP: Verified Proof certified good
2021-03-25	_p95holder_	F-ECM	Factor: 1674782867894802494058199 / (ECM curve 6, B1=50000, B2=5000000)
2017-11-11	kkmrkkblmbrbk	C-PRP	M1964317/223350700169 : 6E37877F63E189F2 PRP: Verified (Factored) PRP without proof (not generated)
2017-10-05	Oliver Kruse	C-PRP	M1964317/223350700169 : 6E37877F63E189F2 PRP: Verified (Factored) PRP without proof (not generated)