138 998 929 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 2⁷⁷

TF target 2⁷⁷

P-1

B1 =	682000
B2 =	31635240

Status	Proof	Date	User	Residue	Shift	Type	Base
Verified	Certified Good Power=8	2025-03-15	EvgenyK	35B6B717CB07D87D	77098698	1	3

History

Date	User	Type	Result
2025-03-16	KongoCache	CERT	Proof certified good
2025-03-15	EvgenyK	C-PRP	35B6B717CB07D87D Proof Certified Good Proof Power: 8
2024-09-22	Ryan Propper	NF-PM1	B1=682000, B2=31635240
2024-06-30	tbusby	NF	no factor TF: 76-77
2024-06-30	tbusby	NF	no factor TF: 75-76
2023-01-10	LordJulius	NF	no factor TF: 74-75
2021-08-03	SRBase	NF	no factor TF: 73-74
2017-03-13	nranks	NF	no factor TF: 71-72
2017-03-13	nranks	NF	no factor TF: 72-73
2017-01-11	proxy2222	NF	no factor TF: 69-70
2017-01-11	proxy2222	NF	no factor TF: 70-71
2017-01-11	proxy2222	NF	no factor TF: 68-69
2016-03-10	dbaugh	NF	no factor TF: 67-68
2015-01-31	el grocco	NF	no factor TF: 66-67
2012-11-24	Corbyguy	NF	no factor TF: 65-66
2010-12-05	M Rafi	NF	no factor TF: 64-65
2010-06-13	Torchwood Institute	NF	no factor TF: 63-64