4 842 599 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
41995018529	11	35.3	old
4988327970345827801047	22	72.1	2021-07-19 18:35:55
676245502180020163084319	24	79.2	2022-11-12 21:53:58

ECM

Digits	B1	Curves
25	50000	13 / 280

Estimated T-Level: 20.2 ⓘ

TF below 2^62 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-09-20	kkmrkkblmbrbk	3385589E08F69889	1	0	1	3
Verified (Factored)	2018-03-29	Oliver Kruse	3385589E08F69889	1	987174	1	3
Verified (Factored)	2021-07-19	SRJ2877	90D815AC7CCDD241	2	2743529	5	3
Verified	2022-11-18	MarkS	90D815AC7CCDD241	3	530119	5	3

P-1 factors

Date	Factor	B1	B2
2022-11-12	676245502180020163084319	260000	121754850

History

Date	User	Type	Result
2022-11-18	ANONYMOUS	CERT	PRP Certification Proof certified good
2022-11-18	MarkS	C-PRP	M4842599/41995018529/4988327970345827801047/676245502180020163084319 : 90D815AC7CCDD241 PRP proof power = 7 PRP: Verified Proof certified good
2022-11-12	USAFSS	F-PM1	Factor: 676245502180020163084319 / (P-1, B1=260000, B2=121754850)
2021-07-20	Ryan Usher	CERT	PRP Certification Proof certified good
2021-07-19	SRJ2877	C-PRP	M4842599/41995018529/4988327970345827801047 : 90D815AC7CCDD241 PRP proof power = 7 PRP: Verified (Factored) Proof certified good
2021-07-19	ATH	F-PP1	Start=2/7, B1=500000, B2=50000000, Factor: 4988327970345827801047
2018-03-29	Oliver Kruse	C-PRP	M4842599/41995018529 : 3385589E08F69889 PRP: Verified (Factored) PRP without proof (not generated)
2017-09-20	kkmrkkblmbrbk	C-PRP	M4842599/41995018529 : 3385589E08F69889 PRP: Verified (Factored) PRP without proof (not generated)