61 602 691 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

TF

No factors below 2⁷⁶

TF target 2⁷⁴

P-1

B1 =	545000
B2 =	10491250

Status	Date	User	Residue	Shift
Unverified	2014-05-13	curtisc	8B76A6A4860B4F__	6329780

Status	Date	User	Residue	Shift	Type	Base
Verified	2021-10-04	adamgm	78D35920C14BD25B	0	1	3
Verified	2021-10-12	_p95holder_	78D35920C14BD25B	9551144	1	3

History

Date	User	Type	Result
2021-10-12	_p95holder_	C-PRP	78D35920C14BD25B PRP: Verified PRP without proof (not generated)
2021-10-04	adamgm	C-PRP	78D35920C14BD25B PRP: Verified PRP without proof (not generated)
2020-06-08	-Anonymous-	NF	no factor from 2^75 to 2^76
2020-05-19	-Anonymous-	NF	no factor from 2^74 to 2^75
2016-02-23	Mark Rose	NF	no factor from 2^62 to 2^63
2014-05-13	curtisc	C-LL	8B76A6A4860B4F__
2013-08-22	Chuck	NF-PM1	B1=545000, B2=10491250, E=6
2013-08-15	RichD0	NF	no factor from 2^73 to 2^74
2012-04-28	Jerry Hallett	NF	no factor from 2^69 to 2^73
2009-12-23	H_Reid	NF	no factor from 2^68 to 2^69
2009-12-22	SAHS Tech Dept	NF	no factor from 2^67 to 2^68
2009-12-07	-Anonymous-	NF	no factor from 2^66 to 2^67
2009-09-30	Ted	NF	no factor from 2^65 to 2^66
2009-09-26	ITS	NF	no factor from 2^64 to 2^65
2009-06-04	Architects Cubed	NF	no factor from 2^63 to 2^64