138 483 313 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

Composite: proven not-prime with PRP test

TF

No factors below 2⁷⁷

TF target 2⁷⁷

P-1

B1 =	676000
B2 =	31393950

Status	Date	User	Residue	Shift	Type	Base
Verified	2025-07-26	themaanderson	018349522BD41BBC	42834057	1	3

History

Date	User	Type	Result
2025-07-26	Poao	CERT	PRP Certification CERT proof power = 10 Proof certified good
2025-07-26	themaanderson	C-PRP	018349522BD41BBC PRP proof power = 10 PRP: Verified Proof certified good
2024-09-20	Ryan Propper	NF-PM1	B1=676000, B2=31393950
2024-08-25	Ryan Propper	NF	no factor from 2^76 to 2^77
2024-07-13	SRBase	NF	no factor from 2^75 to 2^76
2017-02-04	hkt	NF	no factor from 2^74 to 2^75
2017-02-04	hkt	NF	no factor from 2^73 to 2^74
2017-02-04	hkt	NF	no factor from 2^72 to 2^73
2017-02-04	hkt	NF	no factor from 2^71 to 2^72
2017-02-04	hkt	NF	no factor from 2^70 to 2^71
2017-02-03	proxy2222	NF	no factor from 2^69 to 2^70
2016-03-10	dbaugh	NF	no factor from 2^68 to 2^69
2016-02-16	GustavEbbers	NF	no factor from 2^67 to 2^68
2015-02-08	HBendtz	NF	no factor from 2^66 to 2^67
2012-11-23	Richard	NF	no factor from 2^65 to 2^66
2010-12-03	-Anonymous-	NF	no factor from 2^64 to 2^65
2010-06-12	Mr-Plonk	NF	no factor from 2^63 to 2^64