223 000 051 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 2⁷⁹

TF target 2⁷⁹

P-1

B1 =	1875000
B2 =	45468750

Status	Proof	Date	User	Residue	Shift	Type	Base
Verified	Certified Good Power=7	2021-11-12	Kriesel	A8D7368461CEE001	0	1	3

History

Date	User	Type	Result
2021-11-16	techn1ciaN	CERT	Proof certified good
2021-11-12	Kriesel	C-PRP	A8D7368461CEE001 Proof Certified Good Proof Power: 7
2019-10-03	Kriesel	NF	no factor TF: 77-78
2019-10-03	Kriesel	NF	no factor TF: 78-79
2019-10-03	Kriesel	NF	no factor TF: 75-76
2019-10-03	Kriesel	NF	no factor TF: 76-77
2019-10-03	Kriesel	NF	no factor TF: 74-75
2019-09-19	Kriesel	NF-PM1	B1=1875000, B2=45468750, E=2
2019-09-08	Kriesel	NF-PM1	B1=1790000
2010-04-13	rudimeier	NF	no factor TF: 73-74
2010-01-26	rudimeier	NF	no factor TF: 72-73
2010-01-23	rudimeier	NF	no factor TF: 71-72
2010-01-22	rudimeier	NF	no factor TF: 70-71
2010-01-21	rudimeier	NF	no factor TF: 69-70
2010-01-21	rudimeier	NF	no factor TF: 68-69
2010-01-21	rudimeier	NF	no factor TF: 67-68
2010-01-20	rudimeier	NF	no factor TF: 66-67
2010-01-20	rudimeier	NF	no factor TF: 65-66
2010-01-20	rudimeier	NF	no factor TF: 64-65