986 960 461 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Composite: proven not-prime with PRP test

No factors below 2⁸⁶

TF target 2⁸⁵

P-1

B1 =	5500000
B2 =	260000000

Status	Date	User	Residue	Shift	Type	Base
Verified	2025-09-13	Kriesel	586D18C28FDC8B9E	0	1	3

History

Date	User	Type	Result
2025-09-14	Kriesel	CERT	PRP Certification CERT proof power = 10 Proof certified good
2025-09-13	Kriesel	C-PRP	586D18C28FDC8B9E PRP proof power = 10 PRP: Verified Proof certified good
2021-02-09	Kriesel	NF-PM1	B1=5500000, B2=260000000
2020-06-06	Kriesel	NF	no factor from 2^85 to 2^86
2020-06-06	Kriesel	NF	no factor from 2^84 to 2^85
2020-06-06	Kriesel	NF	no factor from 2^83 to 2^84
2020-06-06	Kriesel	NF	no factor from 2^82 to 2^83
2020-06-06	Kriesel	NF	no factor from 2^81 to 2^82
2020-06-06	Kriesel	NF	no factor from 2^80 to 2^81
2020-06-06	Kriesel	NF	no factor from 2^79 to 2^80
2020-06-06	Kriesel	NF	no factor from 2^78 to 2^79
2020-06-06	Kriesel	NF	no factor from 2^77 to 2^78
2020-06-06	Kriesel	NF	no factor from 2^76 to 2^77
2020-06-06	Kriesel	NF	no factor from 2^75 to 2^76
2020-06-06	Kriesel	NF	no factor from 2^74 to 2^75
2020-06-06	Kriesel	NF	no factor from 2^73 to 2^74
2020-06-06	Kriesel	NF	no factor from 2^72 to 2^73
2020-06-06	Kriesel	NF	no factor from 2^71 to 2^72
2015-03-30	ramgeis	NF	no factor from 2^67 to 2^71
2012-07-22	lindee	NF	no factor from 2^66 to 2^67
2012-01-02	linded	NF	no factor from 2^65 to 2^66
2010-10-14	linded	NF	no factor from 2^64 to 2^65

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