100 621 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
1523900957325809396765099761	28	90.3	2010-02-15 15:08:39

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	640 / 640
35	1000000	274 / 1566

Estimated T-Level: 30.9 ⓘ

TF below 2^98 is very unlikely to find new factors due to ECM effort.

Status	User	Residue	Shift
Verified (Factored)	Unknown	7D18	0
Verified (Factored)	Robert Clark	55119ADD33EBFD18	0
Verified (Factored)	Brian J. Beesley	55119ADD33EBFD18	0
Verified (Factored)	Eivind Triel	55119ADD33EBFD18	31334

PRP Cofactor

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-21	Oliver Kruse	DB957AFF6002D584	1	0	1	3
Verified	2017-10-13	kkmrkkblmbrbk	DB957AFF6002D584	1	72964	1	3
Verified	2020-04-17	Oliver Kruse	A328A60B104543BF	1	87939	5	3
Verified	2022-04-15	LordJulius	A328A60B104543BF	1	60988	5	3

History

Date	User	Type	Result
2022-10-23	LordJulius	NF	no factor from 2^66 to 2^67
2022-10-23	LordJulius	NF	no factor from 2^65 to 2^66
2022-10-23	LordJulius	NF	no factor from 2^64 to 2^65
2022-10-23	LordJulius	NF	no factor from 2^63 to 2^64
2022-10-23	LordJulius	NF	no factor from 2^62 to 2^63
2022-04-15	LordJulius	C-PRP	M100621/1523900957325809396765099761 : A328A60B104543BF PRP: Verified PRP without proof (small exponent)
2022-04-13	LordJulius	NF	no factor from 2^61 to 2^62
2022-04-13	LordJulius	NF	no factor from 2^60 to 2^61
2022-04-13	LordJulius	NF	no factor from 2^59 to 2^60
2022-04-13	LordJulius	NF	no factor from 2^58 to 2^59
2022-04-13	LordJulius	NF	no factor from 2^1 to 2^57
2022-03-07	LordJulius	NF	no factor from 2^57 to 2^58
2021-12-17	Seth_Tr	NF-PM1	B1=1000000000, B2=6559833710430
2020-04-17	Oliver Kruse	C-PRP	M100621/1523900957325809396765099761 : A328A60B104543BF PRP: Verified PRP without proof (small exponent)
2018-10-25	J.R. Allen	NF	no factor from 2^52 to 2^57
2017-10-13	kkmrkkblmbrbk	C-PRP	M100621/1523900957325809396765099761 : DB957AFF6002D584 PRP: Verified PRP without proof (not generated)
2017-09-21	Oliver Kruse	C-PRP	M100621/1523900957325809396765099761 : DB957AFF6002D584 PRP: Verified PRP without proof (not generated)
2017-09-21	Oliver Kruse	C-PRP	M100621/1523900957325809396765099761 : DB957AFF6002D584 PRP without proof (not generated)
2016-10-31	kkmrkkblmbrbk	NF-PM1	B1=100000000, B2=2000000000, E=12
2010-02-15	-Anonymous-	F-ECM	Factor: 1523900957325809396765099761
2009-01-23	Sturle Sunde	NF	no factor from 2^59 to 2^60
2009-01-04	Sturle Sunde	NF	no factor from 2^58 to 2^59

Username
Password