562 477 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
21059667550148351339856802703	29	94.1	2019-04-10 08:12:12

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	208 / 640

Estimated T-Level: 26.6 ⓘ

TF below 2^83 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		David Slowinski	782	0
Verified (Factored)		Claude Barbe	6B8189F8AEF88782	0
Verified (Factored)	2002-07-06	Dennis Pope	6B8189F8AEF88782	115901
Verified (Factored)	2015-04-11	MadPoo	6B8189F8AEF88782	521137

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2019-04-10	matzetoni	6EBFA6DFF8ABEF7C	1	553011	5	3
Verified	2019-04-11	Chang Chia-Tche	6EBFA6DFF8ABEF7C	1	375949	5	3

P-1 factors

Date	Factor	B1	B2
2019-04-10	21059667550148351339856802703	10000000	400000000

History

Date	User	Type	Result
2022-03-07	LordJulius	NF	no factor from 2^54 to 2^55
2021-08-25	ViliamF	NF-PM1	B1=15000000, B2=1815000000
2019-04-11	Chang Chia-Tche	C-PRP	M562477/21059667550148351339856802703 : 6EBFA6DFF8ABEF7C PRP: Verified PRP without proof (small exponent)
2019-04-10	matzetoni	C-PRP	M562477/21059667550148351339856802703 : 6EBFA6DFF8ABEF7C PRP: Verified PRP without proof (small exponent)
2019-04-10	alex	F-PM1	Factor: 21059667550148351339856802703 / (P-1, B1=10000000, B2=400000000, E=12)
2018-06-04	chuenkit	NF	no factor from 2^65 to 2^66
2017-11-19	BloodERazor	NF	no factor from 2^64 to 2^65
2016-02-23	Mark Rose	NF	no factor from 2^60 to 2^61
2016-02-23	Mark Rose	NF	no factor from 2^58 to 2^60
2015-11-08	Sid & Andy	NF-PM1	B1=5624770, B2=168743100, E=12
2015-10-21	Bruno Victal	NF-PM1	B1=1600000, B2=66000000, E=12
2015-09-13	Gordon Spence	NF	no factor from 2^63 to 2^64
2015-09-13	Gordon Spence	NF	no factor from 2^62 to 2^63
2015-07-12	NR	NF	no factor from 2^61 to 2^62
2015-04-11	MadPoo	C-LL	6B8189F8AEF88782
2013-10-11	David Campeau	NF-PM1	B1=1355000, B2=36585000, E=12
2012-07-14	Joss	NF-PM1	B1=1124954
2012-03-05	Joss	NF-PM1	B1=875697
2011-08-20	Joss	NF-PM1	B1=700558
2011-06-27	Joss	NF-PM1	B1=420334

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