2 514 157 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
4987519288519	13	42.2	old
88392706875770575449599	23	76.2	2018-03-09 15:33:42

ECM

Digits	B1	Curves
25	50000	59 / 280

Estimated T-Level: 21.1 ⓘ

TF below 2^65 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-10-14	Oliver Kruse	BFA2EC287659F906	1	1191067	5	3
Verified (Factored)	2017-12-01	kkmrkkblmbrbk	BFA2EC287659F906	1	134102	5	3
Verified	2018-03-09	ATH	BFA2EC287659F906	2	1383428	5	3

History

Date	User	Type	Result
2019-07-04	alpertron	NF-PM1	B1=2000000, B2=60000000, E=12
2018-03-09	ATH	C-PRP	M2514157/4987519288519/88392706875770575449599 : BFA2EC287659F906 PRP: Verified PRP without proof (not generated)
2018-03-09	ATH	F-ECM	Factor: 88392706875770575449599 / (ECM curve 1, B1=50000, B2=5000000)
2017-12-01	kkmrkkblmbrbk	C-PRP	M2514157/4987519288519 : BFA2EC287659F906 PRP: Verified PRP without proof (not generated)
2017-10-14	Oliver Kruse	C-PRP	M2514157/4987519288519 : BFA2EC287659F906 PRP: Verified PRP without proof (not generated)