247 603 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
186692663	9	27.5	old
228597488927	12	37.7	2008-07-21 09:14:54
120948806169752102844409	24	76.7	2016-05-13 12:16:36
2529226819565545519639751297	28	91.0	2014-08-15 10:43:32
8450557429377403415538456969193	31	102.7	2021-06-16 07:34:12
29962306250036816109264893850191	32	104.6	2020-05-11 22:44:54

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	640 / 640
35	1000000	388 / 1566

Estimated T-Level: 31.2 ⓘ

TF below 2^99 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-09-22	Oliver Kruse	854029410D27F910	4	0	1	3
Verified (Factored)	2017-10-12	kkmrkkblmbrbk	854029410D27F910	4	160707	1	3
Verified (Factored)	2020-04-17	Oliver Kruse	9167C093860698BF	4	25389	5	3
Verified (Factored)	2020-05-11	M Miller	9167C093860698BF	5	115098	5	3
Verified	2021-06-16	Daniil Tsarkov	9167C093860698BF	6	144109	5	3
Verified	2021-06-17	tottenhoff	9167C093860698BF	6	128373	5	3

History

Date	User	Type	Result
2022-04-15	Oliver Kruse	NF-PM1	B1=30000000, B2=10120247026890
2021-08-04	Oliver Kruse	NF-PM1	B1=30000000, B2=3000000000, E=24
2021-06-17	ky0uraku	CERT	PRP Certification Proof certified good
2021-06-17	tottenhoff	C-PRP	M247603/186692663/228597488927/2529226819565545519639751297/120948806169752102844409/29962306250036816109264893850191/8450557429377403415538456969193 : 9167C093860698BF PRP proof power = 5 PRP: Verified Proof certified good
2021-06-16	curtisc	CERT	PRP Certification Proof certified good
2021-06-16	Daniil Tsarkov	C-PRP	M247603/186692663/228597488927/120948806169752102844409/2529226819565545519639751297/8450557429377403415538456969193/29962306250036816109264893850191 : 9167C093860698BF PRP proof power = 5 PRP: Verified Proof certified good
2021-06-16	_p95holder_	F-ECM	Factor: 8450557429377403415538456969193 / (ECM curve 6, B1=250000, B2=25000000)
2020-05-11	M Miller	C-PRP	M247603/186692663/228597488927/2529226819565545519639751297/120948806169752102844409/29962306250036816109264893850191 : 9167C093860698BF PRP: Verified (Factored) PRP without proof (small exponent)
2020-05-11	-Anonymous-	F-ECM	Factor: 29962306250036816109264893850191 / (ECM curve 3, B1=250000, B2=25000000, Sigma=752612085926147)
2020-04-17	Oliver Kruse	C-PRP	M247603/186692663/228597488927/120948806169752102844409/2529226819565545519639751297 : 9167C093860698BF PRP: Verified (Factored) PRP without proof (small exponent)
2017-10-12	kkmrkkblmbrbk	C-PRP	M247603/186692663/228597488927/2529226819565545519639751297/120948806169752102844409 : 854029410D27F910 PRP: Verified (Factored) PRP without proof (small exponent)
2017-09-22	Oliver Kruse	C-PRP	M247603/known_factors : 854029410D27F910 PRP without proof (not generated)
2016-05-13	TJAOI	F-ECM	Factor: 120948806169752102844409 / (ECM curve 5, B1=50000, B2=5000000)
2014-08-15	TJAOI	F-ECM	Factor: 2529226819565545519639751297
2008-07-21	J Feitsma	F	Factor: 228597488927