1 938 317 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

1938317

Factored

Factor	Digits	Bits	Date
1318055561	10	30.3	old
1364575169	10	30.3	2008-07-15 07:48:26
204527333207	12	37.6	2008-07-15 07:48:26
3668842540967	13	41.7	2008-07-15 07:48:26
741734494854049	15	49.4	2008-08-26 20:20:20
5509281103360631	16	52.3	2014-08-03 11:17:12
33003358143602527	17	54.9	2014-12-20 12:07:35
23167667768539821799	20	64.3	2015-02-19 19:18:34
16725481527073805912383519	26	83.8	2015-10-18 12:31:41

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	640 / 640
35	1000000	1246 / 1566

Estimated T-Level: 34.0 ⓘ

TF below 2^108 is very unlikely to find new factors due to ECM effort.

PRP Cofactor

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-30	alpertron	E61DF893264FB8E4	9	0	1	3
Verified	2017-10-20	Oliver Kruse	E61DF893264FB8E4	9	721298	1	3
Verified	2022-03-08	LordJulius	981BC4AD6A3AA304	9	42023	5	3

P-1 factors

Date	Factor	B1	B2
2015-02-19	23167667768539821799	500000	0

History

Date	User	Type	Result
2022-03-09	LordJulius	NF	no factor from 2^61 to 2^62
2022-03-08	Dobri	CERT	PRP Certification Proof certified good
2022-03-08	LordJulius	C-PRP	M1938317/1318055561/1364575169/204527333207/3668842540967/741734494854049/5509281103360631/33003358143602527/23167667768539821799/16725481527073805912383519 : 981BC4AD6A3AA304 PRP proof power = 7 PRP: Verified Proof certified good
2022-03-08	LordJulius	NF	no factor from 2^72 to 2^73
2022-03-08	LordJulius	NF	no factor from 2^67 to 2^68
2022-03-07	firejuggler	NF	no factor from 2^55 to 2^61
2022-03-07	firejuggler	F	Factor: 23167667768539821799 / TF: 64-65
2022-01-14	Seth_Tr	NF-PM1	B1=700000000, B2=71202901770
2022-01-05	Seth_Tr	NF-PM1	B1=700000000, B2=702760288230
2021-12-22	Seth_Tr	NF-PM1	B1=200000000, B2=20685392910
2021-10-15	nordi	NF-PP1	Start=6/5, B1=40000000, B2=4000000000
2021-10-09	nordi	NF-PP1	Start=2/7, B1=40000000, B2=4000000000
2021-04-05	Seth_Tr	NF-PM1	B1=200000000, B2=30200000000
2018-01-10	Kriesel	NF	no factor from 2^75 to 2^76
2017-10-30	Kriesel	NF	no factor from 2^74 to 2^75
2017-10-20	Oliver Kruse	C-PRP	M1938317/1318055561/1364575169/204527333207/3668842540967/741734494854049/5509281103360631/33003358143602527/23167667768539821799/16725481527073805912383519 : E61DF893264FB8E4 PRP: Verified PRP without proof (not generated)
2017-10-19	Kriesel	NF	no factor from 2^73 to 2^74
2017-10-13	Kriesel	NF	no factor from 2^71 to 2^72
2017-10-13	Kriesel	NF	no factor from 2^70 to 2^71
2017-10-13	Kriesel	NF	no factor from 2^69 to 2^70
2017-10-13	Kriesel	NF	no factor from 2^68 to 2^69
2017-10-13	Kriesel	NF	no factor from 2^66 to 2^67
2017-10-13	Kriesel	NF	no factor from 2^65 to 2^66
2017-10-13	Kriesel	NF	no factor from 2^63 to 2^64
2017-10-13	Kriesel	NF	no factor from 2^62 to 2^63
2017-09-30	alpertron	C-PRP	M1938317/1318055561/1364575169/204527333207/3668842540967/741734494854049/5509281103360631/33003358143602527/23167667768539821799/16725481527073805912383519 : E61DF893264FB8E4 PRP: Verified PRP without proof (not generated)
2016-03-17	alpertron	NF-PM1	B1=30000000, B2=1000000000, E=12
2016-03-17	alpertron	NF-PM1	B1=100000000, B2=3000000000
2016-03-16	alpertron	NF-PM1	B1=500000, B2=15000000, E=12
2016-03-15	James Heinrich	NF-PM1	B1=10000000, B2=300000000, E=12
2015-10-18	alpertron	F-ECM	Factor: 16725481527073805912383519 / (ECM curve 234, B1=50000, B2=5000000)
2015-02-19	pdazzl	F-PM1	Factor: 23167667768539821799 / (P-1, B1=500000)
2014-12-20	TJAOI	F	Factor: 33003358143602527 / TF: 54-55
2014-08-03	TJAOI	F	Factor: 5509281103360631
2008-08-26	-Anonymous-	F	Factor: 741734494854049
2008-07-15	J Feitsma	F	Factor: 3668842540967
2008-07-15	J Feitsma	F	Factor: 204527333207
2008-07-15	J Feitsma	F	Factor: 1364575169

Username
Password