2 611 901 Exponent Status

Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

M_n

Details

Composite, with 2 known prime factors. Cofactor is composite.

Trial Factored to 2⁶⁸

TF target 2⁶³

Factored

Factor	Digits	Bits	Date
4988730911	10	32.2	old
1513927000368811751	19	60.4	2016-02-03 12:55:05

ECM

Digits	B1	Curves
25	50000	101 / 280

Estimated T-Level: 21.8 ⓘ

TF below 2^67 is very unlikely to find new factors due to ECM effort.

Status	Proof	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	PRP without proof (not generated)	2017-10-15	Oliver Kruse	7592C5CF5BF9EC48	2	2571763	5	3
Verified	PRP without proof (not generated)	2017-12-02	storm5510	7592C5CF5BF9EC48	2	2374951	5	3

History

Date	User	Type	Result
2019-07-04	alpertron	NF-PM1	B1=2000000, B2=60000000, E=12
2017-12-02	storm5510	C-PRP	M2611901/4988730911/1513927000368811751 : 7592C5CF5BF9EC48
2017-10-15	Oliver Kruse	C-PRP	M2611901/4988730911/1513927000368811751 : 7592C5CF5BF9EC48
2016-02-03	TJAOI	F	Factor: 1513927000368811751

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