63 103 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
1009649	7	19.9	old
10222687	8	23.3	2008-08-26 20:09:00
395535110613510858308897	24	78.4	2014-05-07 11:51:09
231574166189244776982221118628797630333743	42	137.4	2022-11-08 15:08:44

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	640 / 640
35	1000000	1566 / 1566
40	3000000	535 / 4588

Estimated T-Level: 35.6 ⓘ

TF below 2^113 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-09-21	Oliver Kruse	00221F1E8768ADF6	3	0	1	3
Verified (Factored)	2017-10-02	kkmrkkblmbrbk	00221F1E8768ADF6	3	0	1	3
Verified (Factored)	2017-12-07	ATH	00221F1E8768ADF6	3	28421	1	3
Verified (Factored)	2020-04-17	Oliver Kruse	EB8144217498EE5C	3	22642	5	3
Verified	2022-11-08	George Woltman	EB8144217498EE5C	4	41682	5	3

P-1 factors

Date	Factor	B1	B2
2022-11-08	231574166189244776982221118628797630333743	1000000000	92348999993250

History

Date	User	Type	Result
2022-11-08	George Woltman	C-PRP	M63103/1009649/10222687/395535110613510858308897/231574166189244776982221118628797630333743 : EB8144217498EE5C PRP: Verified PRP without proof (small exponent)
2022-11-08	George Woltman	F-PM1	Factor: 231574166189244776982221118628797630333743 / (P-1, B1=1000000000, B2=92348999993250)
2021-04-28	ATH	NF-PP1	Start=2/7, B1=15000000, B2=1500000000
2020-04-17	Oliver Kruse	C-PRP	M63103/1009649/10222687/395535110613510858308897 : EB8144217498EE5C PRP: Verified PRP without proof (small exponent)
2017-12-07	ATH	C-PRP	M63103/1009649/10222687/395535110613510858308897 : 00221F1E8768ADF6 PRP: Verified PRP without proof (small exponent)
2017-10-02	kkmrkkblmbrbk	C-PRP	M63103/1009649/10222687/395535110613510858308897 : 00221F1E8768ADF6 PRP: Verified PRP without proof (not generated)
2017-09-21	Oliver Kruse	C-PRP	M63103/known_factors : 00221F1E8768ADF6 PRP without proof (not generated)
2016-10-21	kkmrkkblmbrbk	NF-PM1	B1=100000000, B2=2000000000, E=12
2014-05-07	TJAOI	F-ECM	Factor: 395535110613510858308897
2008-08-26	-Anonymous-	F	Factor: 10222687