960 937 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

Composite, with 4 known prime factors. Cofactor is composite.

Factored

Factor	Digits	Bits	Date
5765623	7	22.5	old
125281200439	12	36.9	2008-07-16 09:29:22
126323631171741114051401	24	76.7	2020-03-30 08:08:25
776322174507788752156513	24	79.4	2017-09-15 15:41:02

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	100 / 640

Estimated T-Level: 25.8 ⓘ

TF below 2^81 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-09-23	ee33t1	C0793FE679C3C9BC	3	0	1	3
Verified (Factored)	2017-10-15	Oliver Kruse	C0793FE679C3C9BC	3	103208	1	3
Verified	2020-03-31	mnd9	3E1B4A9BA98D4A9E	4	23075	5	3
Verified	2020-04-02	fre_games	3E1B4A9BA98D4A9E	4	14499	5	3

History

Date	User	Type	Result
2020-04-02	fre_games	C-PRP	M960937/5765623/125281200439/776322174507788752156513/126323631171741114051401 : 3E1B4A9BA98D4A9E PRP: Verified PRP without proof (small exponent)
2020-03-31	mnd9	C-PRP	M960937/5765623/125281200439/126323631171741114051401/776322174507788752156513 : 3E1B4A9BA98D4A9E PRP: Verified PRP without proof (small exponent)
2020-03-30	TJAOI	F-ECM	Factor: 126323631171741114051401 / (ECM curve 8, B1=250000, B2=25000000)
2017-10-15	Oliver Kruse	C-PRP	M960937/5765623/125281200439/776322174507788752156513 : C0793FE679C3C9BC PRP: Verified PRP without proof (small exponent)
2017-09-23	ee33t1	C-PRP	M960937/known_factors : C0793FE679C3C9BC PRP: Verified PRP without proof (not generated)
2017-09-15	TJAOI	F-ECM	Factor: 776322174507788752156513 / (ECM curve 30, B1=50000, B2=5000000)
2016-03-17	alpertron	NF-PM1	B1=200000, B2=5000000, E=6
2008-07-16	J Feitsma	F	Factor: 125281200439