4 870 027 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
15048383431	11	33.8	old
3922758946186509636047	22	71.7	2019-07-12 12:01:53

ECM

Digits	B1	Curves
25	50000	3 / 280

Estimated T-Level: 20.1 ⓘ

TF below 2^62 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-09-20	kkmrkkblmbrbk	DE5B46B1192A16C6	1	0	1	3
Verified (Factored)	2018-04-01	Oliver Kruse	DE5B46B1192A16C6	1	1841473	1	3
Verified	2019-07-12	Niels_Mache_Nextcloud	A925542934E16383	2	3144051	5	3
Verified	2019-07-13	kkmrkkblmbrbk	A925542934E16383	2	3293774	5	3

History

Date	User	Type	Result
2023-08-17	USAFSS	NF-PM1	B1=256000, B2=105522060
2019-07-13	kkmrkkblmbrbk	C-PRP	M4870027/15048383431/3922758946186509636047 : A925542934E16383 PRP: Verified PRP without proof (not generated)
2019-07-12	Niels_Mache_Nextcloud	C-PRP	M4870027/15048383431/3922758946186509636047 : A925542934E16383 PRP: Verified PRP without proof (not generated)
2019-07-12	ATH	F-ECM	Factor: 3922758946186509636047 / (ECM curve 3, B1=50000, B2=5000000, Sigma=3216985975102311)
2018-04-01	Oliver Kruse	C-PRP	M4870027/15048383431 : DE5B46B1192A16C6 PRP: Verified PRP without proof (not generated)
2017-09-20	kkmrkkblmbrbk	C-PRP	M4870027/15048383431 : DE5B46B1192A16C6 PRP: Verified PRP without proof (not generated)