8 969 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

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

Factored

Factor	Digits	Bits	Date
13345873	8	23.7	old
1142273903	10	30.1	old

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	640 / 640
35	1000000	1566 / 1566
40	3000000	4588 / 4588
45	11000000	9201 / 9201
50	44000000	6889 / 16550

Estimated T-Level: 47.1 ⓘ

TF below 2^151 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-21	Oliver Kruse	E02FF7405906E6E3	2	0	1	3
Verified	2017-10-12	kkmrkkblmbrbk	E02FF7405906E6E3	2	7132	1	3
Verified	2020-04-17	Oliver Kruse	3E8797F9573326CB	2	5554	5	3
Verified	2024-07-01	kkmrkkblmbrbk	3E8797F9573326CB	2	7633	5	3

History

Date	User	Type	Result
2024-07-01	kkmrkkblmbrbk	C-PRP	M8969/1142273903/13345873 : 3E8797F9573326CB PRP: Verified PRP without proof (small exponent)
2023-07-25	JacobZ	NF-PM1	B1=65000000000, B2=251099672798124150
2021-12-16	Lisander Viaene	NF-PM1	B1=100000000
2020-04-17	Oliver Kruse	C-PRP	M8969/13345873/1142273903 : 3E8797F9573326CB PRP: Verified PRP without proof (small exponent)
2017-10-12	kkmrkkblmbrbk	C-PRP	M8969/13345873/1142273903 : E02FF7405906E6E3 PRP: Verified PRP without proof (not generated)
2017-09-21	Oliver Kruse	C-PRP	M8969/13345873/1142273903 : E02FF7405906E6E3 PRP: Verified PRP without proof (not generated)
2017-09-21	Oliver Kruse	C-PRP	M8969/13345873/1142273903 : E02FF7405906E6E3 PRP without proof (not generated)