3 252 307 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Composite, with 5 known prime factors. Cofactor is composite.

Factored

Factor	Digits	Bits	Date
2862030161	10	31.4	old
220012063937	12	37.7	2008-09-07 19:47:49
291692910217	12	38.1	2008-09-07 19:47:50
91691791358404873	17	56.3	2015-03-27 12:13:28
42183269366474625391	20	65.2	2018-07-18 10:30:39

ECM

Digits	B1	Curves
25	50000	9 / 280

Estimated T-Level: 20.2 ⓘ

TF below 2^62 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-11-03	kkmrkkblmbrbk	267AB3E6F9CE5419	4	2686312	5	3
Verified (Factored)	2017-11-19	Oliver Kruse	267AB3E6F9CE5419	4	513630	5	3
Verified	2018-07-20	_p95holder_	267AB3E6F9CE5419	5	1396313	5	3

History

Date	User	Type	Result
2022-07-20	Joss	NF-PM1	B1=4100000, B2=3298631490
2022-04-06	LordJulius	NF	no factor from 2^63 to 2^64
2022-04-06	LordJulius	NF	no factor from 2^62 to 2^63
2022-01-10	Joss	NF-PM1	B1=4100000, B2=1038178680
2021-12-21	Joss	NF-PM1	B1=4100000, B2=116758950
2021-08-21	Joss	NF-PM1	B1=3252307, B2=162615350, E=12
2021-08-19	Joss	NF	no factor from 2^69 to 2^70
2021-08-11	Joss	NF-PM1	B1=3252307, B2=32523070, E=12
2021-08-05	Joss	NF-PM1	B1=3252307
2021-01-25	Joss	NF	no factor from 2^68 to 2^69
2021-01-24	Joss	NF	no factor from 2^67 to 2^68
2021-01-15	Joss	NF	no factor from 2^66 to 2^67
2021-01-02	Joss	NF	no factor from 2^64 to 2^65
2020-06-24	Joss	NF-PM1	B1=823916, B2=32523070, E=12
2018-07-20	_p95holder_	C-PRP	M3252307/2862030161/220012063937/291692910217/91691791358404873/42183269366474625391 : 267AB3E6F9CE5419 PRP: Verified PRP without proof (not generated)
2018-07-18	TJAOI	F	Factor: 42183269366474625391 / TF: 65-66
2017-11-19	Oliver Kruse	C-PRP	M3252307/2862030161/220012063937/291692910217/91691791358404873 : 267AB3E6F9CE5419 PRP: Verified PRP without proof (not generated)
2017-11-03	kkmrkkblmbrbk	C-PRP	M3252307/2862030161/220012063937/291692910217/91691791358404873 : 267AB3E6F9CE5419 PRP: Verified PRP without proof (not generated)
2015-03-27	TJAOI	F	Factor: 91691791358404873 / TF: 56-57
2008-09-07	Will Edgington	F	Factor: 291692910217
2008-09-07	Will Edgington	F	Factor: 220012063937

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