168 730 223 Exponent Status

Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

M_n

Details

Composite: proven not-prime with PRP test

No factors below 2⁸³

TF target 2⁷⁸

P-1

B1 =	1000000
B2 =	40000000

Status	Proof	Date	User	Residue	Shift	Type	Base
Verified	Not Uploaded Power=8	2025-02-07	mkras	8759FA2A7CC87EF0	49813307	1	3
Verified	Certified Good Power=10	2025-04-06	Kriesel	8759FA2A7CC87EF0	0	1	3

History

Date	User	Type	Result
2025-04-06	KongoCache	CERT	Proof certified good
2025-04-06	Kriesel	C-PRP	8759FA2A7CC87EF0 Proof Certified Good Proof Power: 10
2025-02-07	mkras	C-PRP	8759FA2A7CC87EF0 Proof Not Uploaded Proof Power: 8
2024-05-16	Tucker Kao	NF	no factor TF: 82-83
2024-02-20	Tucker Kao	NF	no factor TF: 81-82
2023-09-23	Tucker Kao	NF	no factor TF: 80-81
2023-02-11	Tucker Kao	NF	no factor TF: 79-80
2022-02-19	Tucker Kao	NF	no factor TF: 78-79
2022-02-19	Tucker Kao	NF	no factor TF: 77-78
2022-02-15	Tucker Kao	NF-PM1	B1=1000000, B2=40000000
2021-12-12	Tucker Kao	NF	no factor TF: 76-77
2018-02-27	Oliver Kruse	NF	no factor TF: 70-76
2017-05-18	Yxinity	NF	no factor TF: 69-70
2017-05-18	Yxinity	NF	no factor TF: 68-69
2016-04-06	XZT	NF	no factor TF: 67-68
2015-07-14	JoJo-SUN24	NF	no factor TF: 66-67
2013-03-27	Nathan Edington	NF	no factor TF: 65-66
2011-02-17	Mr-Plonk	NF	no factor TF: 64-65
2010-07-08	Charles A. Morris	NF	no factor TF: 63-64