101 267 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Composite, with 2 known prime factors. Cofactor is composite.

Factored

Factor	Digits	Bits	Date
17012857	8	24.0	old
615471053503	12	39.2	2008-07-26 09:16:55

ECM

Estimated T-Level: 32.5 ⓘ

TF below 2^103 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-21	Oliver Kruse	D041C0A7F14AE70D	2	0	1	3
Verified	2017-10-13	kkmrkkblmbrbk	D041C0A7F14AE70D	2	91975	1	3
Verified	2020-04-17	Oliver Kruse	4245BF7258DE2368	2	91851	5	3
Verified	2022-04-15	LordJulius	4245BF7258DE2368	2	54907	5	3

History

Date	User	Type	Result
2022-12-08	LordJulius	NF	no factor from 2^64 to 2^65
2022-12-08	LordJulius	NF	no factor from 2^63 to 2^64
2022-12-08	LordJulius	NF	no factor from 2^62 to 2^63
2022-04-15	LordJulius	C-PRP	M101267/17012857/615471053503 : 4245BF7258DE2368 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 2^57 to 2^58
2021-12-19	Seth_Tr	NF-PM1	B1=1000000000, B2=6739854611490
2020-04-17	Oliver Kruse	C-PRP	M101267/17012857/615471053503 : 4245BF7258DE2368 PRP: Verified PRP without proof (small exponent)
2018-11-02	J.R. Allen	NF	no factor from 2^59 to 2^60
2018-11-02	J.R. Allen	NF	no factor from 2^58 to 2^59
2018-11-02	J.R. Allen	NF	no factor from 2^57 to 2^58
2018-10-25	J.R. Allen	NF	no factor from 2^52 to 2^57
2017-10-13	kkmrkkblmbrbk	C-PRP	M101267/17012857/615471053503 : D041C0A7F14AE70D PRP: Verified PRP without proof (not generated)
2017-09-21	Oliver Kruse	C-PRP	M101267/17012857/615471053503 : D041C0A7F14AE70D PRP: Verified PRP without proof (not generated)
2017-09-21	Oliver Kruse	C-PRP	M101267/17012857/615471053503 : D041C0A7F14AE70D PRP without proof (not generated)
2016-11-02	kkmrkkblmbrbk	NF-PM1	B1=100000000, B2=2000000000, E=12
2008-07-26	J Feitsma	F	Factor: 615471053503

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