137 440 717 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 =	1218000
B2 =	1568744100

Status	Proof	Date	User	Residue	Shift	Type	Base
Verified	Certified Good Power=9	2025-02-21	ky0uraku	D6CA970329E89A96	67668480	1	3

History

Date	User	Type	Result
2025-02-21	635 group	CERT	Proof certified good
2025-02-21	ky0uraku	C-PRP	D6CA970329E89A96 Proof Certified Good Proof Power: 9
2024-07-20	Luke Durant	NF	no factor TF: 76-77
2024-07-03	Luke Durant	NF-PM1	B1=1218000, B2=1568744100
2024-06-21	JacobZ	NF	no factor TF: 75-76
2023-01-12	SRBase	NF	no factor TF: 74-75
2021-07-31	SRBase	NF	no factor TF: 73-74
2020-10-27	SRBase	NF	no factor TF: 72-73
2016-02-26	Ready4PrimeTime	NF	no factor TF: 71-72
2016-02-14	ANONYMOUS	NF	no factor TF: 70-71
2016-02-14	ANONYMOUS	NF	no factor TF: 69-70
2016-02-14	ANONYMOUS	NF	no factor TF: 68-69
2016-02-14	ANONYMOUS	NF	no factor TF: 67-68
2015-02-05	Grant McCracken	NF	no factor TF: 66-67
2012-11-12	sasaki3	NF	no factor TF: 65-66
2010-11-30	sasaki3	NF	no factor TF: 64-65
2010-06-12	EPF	NF	no factor TF: 63-64