12 731 681 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Composite, with 6 known prime factors. Cofactor is composite.

Factored

Factor	Digits	Bits	Date
101853449	9	26.6	old
407413793	9	28.6	2008-09-08 08:37:59
3157456889	10	31.6	2008-09-08 08:37:59
4583405161	10	32.1	2008-09-08 08:37:59
728178441630512143	18	59.3	2015-11-12 11:51:35
4942614515973735792916302243662188576877302039	46	151.8	2022-05-05 00:03:28

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2022-05-05	XZT	B6179F3864590F05	5	11087627	5	3
Verified	2022-05-16	Flaukrotist	B6179F3864590F05	6	6198033	5	3

P-1 factors

Date	Factor	B1	B2
2022-05-05	4942614515973735792916302243662188576877302039	400000	428459850

History

Date	User	Type	Result
2022-10-11	Naegi Makoto	NF-PM1	B1=25000000, B2=96059314260
2022-10-01	LordJulius	NF	no factor from 2^67 to 2^68
2022-10-01	LordJulius	NF	no factor from 2^66 to 2^67
2022-10-01	LordJulius	NF	no factor from 2^65 to 2^66
2022-10-01	LordJulius	NF	no factor from 2^64 to 2^65
2022-09-30	Naegi Makoto	NF	no factor from 2^71 to 2^72
2022-09-30	Naegi Makoto	NF	no factor from 2^70 to 2^71
2022-09-30	Naegi Makoto	NF	no factor from 2^69 to 2^70
2022-09-30	Naegi Makoto	NF	no factor from 2^68 to 2^69
2022-09-30	Naegi Makoto	NF	no factor from 2^67 to 2^68
2022-05-17	curtisc	CERT	PRP Certification Proof certified good
2022-05-16	Flaukrotist	C-PRP	M12731681/101853449/407413793/3157456889/4583405161/728178441630512143/4942614515973735792916302243662188576877302039 : B6179F3864590F05 PRP proof power = 8 PRP: Verified Proof certified good
2022-05-05	Dr. Reiff Lafleur	CERT	PRP Certification Proof certified good
2022-05-05	XZT	C-PRP	M12731681/101853449/407413793/3157456889/4583405161/728178441630512143 : B6179F3864590F05 PRP proof power = 8 PRP: Verified Proof certified good
2022-05-05	nordi	F-PM1	Factor: 4942614515973735792916302243662188576877302039 / (P-1, B1=400000, B2=428459850)
2022-05-04	nordi	NF-PM1	B1=400000
2015-11-12	TJAOI	F	Factor: 728178441630512143 / TF: 59-60
2008-09-08	Will Edgington	F	Factor: 4583405161
2008-09-08	Will Edgington	F	Factor: 3157456889
2008-09-08	Will Edgington	F	Factor: 407413793

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