100 987 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
1013508854920651431268508506751013503	37	119.6	2019-09-05 02:01:02

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	640 / 640
35	1000000	1566 / 1566
40	3000000	2945 / 4588

Estimated T-Level: 38.2 ⓘ

TF below 2^122 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Unknown	73E0	0
Verified (Factored)		Robert Clark	65AB8F647283F3E0	0
Verified (Factored)		Brian J. Beesley	65AB8F647283F3E0	0
Verified (Factored)		Eivind Triel	65AB8F647283F3E0	37276
Verified (Factored)	2003-01-16	Pellegrino	65AB8F647283F3E0	28070

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2019-09-05	mnd9	634739082CCF3702	1	88766	5	3
Verified	2019-09-07	Ivan M	634739082CCF3702	1	36260	5	3
Verified	2022-04-15	LordJulius	634739082CCF3702	1	67780	5	3

History

Date	User	Type	Result
2022-11-04	LordJulius	NF	no factor from 2^66 to 2^67
2022-04-15	LordJulius	C-PRP	M100987/1013508854920651431268508506751013503 : 634739082CCF3702 PRP: Verified PRP without proof (small exponent)
2021-12-19	Seth_Tr	NF-PM1	B1=1000000000, B2=6734439121410
2019-09-07	Ivan M	C-PRP	M100987/1013508854920651431268508506751013503 : 634739082CCF3702 PRP: Verified PRP without proof (small exponent)
2019-09-05	mnd9	C-PRP	M100987/1013508854920651431268508506751013503 : 634739082CCF3702 PRP: Verified PRP without proof (small exponent)
2019-09-05	Ryan Propper	F-ECM	Factor: 1013508854920651431268508506751013503
2019-01-18	BloodERazor	NF	no factor from 2^65 to 2^66
2017-10-23	BloodERazor	NF	no factor from 2^64 to 2^65
2016-11-30	mikr	NF-PM1	B1=350000000, B2=25500000000, E=12
2016-02-23	Mark Rose	NF	no factor from 2^57 to 2^58
2016-02-17	Gordon Spence	NF	no factor from 2^63 to 2^64
2016-02-04	monsted	NF	no factor from 2^62 to 2^63
2015-08-20	NR	NF	no factor from 2^61 to 2^62
2012-11-21	alpertron	NF-PM1	B1=100000000, B2=2000000000, E=12
2012-09-16	Richard B. Woods	NF	no factor from 2^60 to 2^61
2009-01-25	Sturle Sunde	NF	no factor from 2^59 to 2^60
2009-01-05	Sturle Sunde	NF	no factor from 2^58 to 2^59