2 199 931 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
29989459393	11	34.8	old
8452722113672448209315449	25	82.8	2016-04-03 12:34:02

ECM

Digits	B1	Curves
25	50000	110 / 280

Estimated T-Level: 22.0 ⓘ

TF below 2^68 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-10-10	Oliver Kruse	FA92FEEA90EECAE3	2	0	1	3
Verified	2017-11-19	kkmrkkblmbrbk	FA92FEEA90EECAE3	2	1916416	1	3

P-1 factors

Date	Factor	B1	B2
2016-04-03	8452722113672448209315449	500000	15000000

History

Date	User	Type	Result
2017-11-19	kkmrkkblmbrbk	C-PRP	M2199931/29989459393/8452722113672448209315449 : FA92FEEA90EECAE3 PRP: Verified PRP without proof (not generated)
2017-10-10	Oliver Kruse	C-PRP	M2199931/29989459393/8452722113672448209315449 : FA92FEEA90EECAE3 PRP: Verified PRP without proof (not generated)
2016-04-03	alpertron	F-PM1	Factor: 8452722113672448209315449 / (P-1, B1=500000, B2=15000000, E=12)