2 611 849 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
27685599401	11	34.7	old
3674908521558143	16	51.7	2014-03-31 01:28:06
171257807541265918192729	24	77.2	2024-04-18 03:40:08

ECM

Digits	B1	Curves
25	50000	41 / 280

Estimated T-Level: 20.7 ⓘ

TF below 2^64 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)	2017-10-15	Oliver Kruse	F6B5D219D5259D25	2	2454529	5	3
composite	Verified (Factored)	2017-12-02	storm5510	F6B5D219D5259D25	2	1537902	5	3
composite	Verified	2024-04-18	Anton Tsvetkov	F6B5D219D5259D25	3	2254932	5	3

History

Date	User	Type	Result
2024-04-18	Jon Paul Whiteside	CERT	PRP Certification Proof certified good
2024-04-18	Anton Tsvetkov	C-PRP	M2611849/27685599401/3674908521558143/171257807541265918192729 : F6B5D219D5259D25 PRP proof power = 7 PRP: Verified Proof certified good
2024-04-18	Anton Tsvetkov	F-ECM	Factor: 171257807541265918192729 / (ECM curve 28, B1=50000, B2=14967225, Edwards Sigma=3741752552682956)
2019-07-04	alpertron	NF-PM1	B1=2000000, B2=60000000, E=12
2017-12-02	storm5510	C-PRP	M2611849/27685599401/3674908521558143 : F6B5D219D5259D25 PRP: Verified (Factored) PRP without proof (not generated)
2017-10-15	Oliver Kruse	C-PRP	M2611849/27685599401/3674908521558143 : F6B5D219D5259D25 PRP: Verified (Factored) PRP without proof (not generated)
2014-03-31	pdazzl	F	Factor: 3674908521558143 / TF: 48-54