7 963 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
152889601	9	27.2	old
4273192546248023	16	51.9	old

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	640 / 640
35	1000000	1566 / 1566
40	3000000	4588 / 4588
45	11000000	5985 / 9201

Estimated T-Level: 43.3 ⓘ

TF below 2^139 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	71BA76F1B0C3232A	2	0	1	3
Verified	2017-10-12	kkmrkkblmbrbk	71BA76F1B0C3232A	2	4932	1	3
Unverified	2020-04-17	Oliver Kruse	6A86FAC02BCB82__	2	6496	5	3

History

Date	User	Type	Result
2023-05-25	JacobZ	NF-PM1	B1=59000000000, B2=236984939060469600
2020-04-17	Oliver Kruse	C-PRP	M7963/152889601/4273192546248023 : 6A86FAC02BCB82__ PRP without proof (small exponent)
2017-10-12	kkmrkkblmbrbk	C-PRP	M7963/152889601/4273192546248023 : 71BA76F1B0C3232A PRP without proof (not generated)
2017-09-21	Oliver Kruse	C-PRP	M7963/152889601/4273192546248023 : 71BA76F1B0C3232A PRP without proof (not generated)
2017-09-21	Oliver Kruse	C-PRP	M7963/152889601/4273192546248023 : 71BA76F1B0C3232A PRP without proof (not generated)