1 936 757 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
15494057	8	23.9	old
53665294668376694999	20	65.5	2019-01-08 14:13:56
381273300291315930049	21	68.4	2021-02-15 17:32:13

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	106 / 640

Estimated T-Level: 25.8 ⓘ

TF below 2^81 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-09-30	alpertron	690C3473671D5723	1	0	1	3
Verified (Factored)	2017-10-20	Oliver Kruse	690C3473671D5723	1	658272	1	3
Verified (Factored)	2019-01-08	ATH	1AA5A6BED7790E8E	2	1467460	5	3
Verified (Factored)	2019-01-10	Oliver Kruse	1AA5A6BED7790E8E	2	827331	5	3
Verified	2021-02-15	mrh	1AA5A6BED7790E8E	3	444224	5	3

History

Date	User	Type	Result
2021-02-16	C.D.B.	CERT	PRP Certification Proof certified good
2021-02-15	mrh	C-PRP	M1936757/15494057/53665294668376694999/381273300291315930049 : 1AA5A6BED7790E8E PRP proof power = 7 PRP: Verified Proof certified good
2021-02-15	_p95holder_	F-ECM	Factor: 381273300291315930049 / (ECM curve 3, B1=50000, B2=5000000)
2019-01-10	Oliver Kruse	C-PRP	M1936757/15494057/53665294668376694999 : 1AA5A6BED7790E8E PRP: Verified (Factored) PRP without proof (not generated)
2019-01-08	ATH	C-PRP	M1936757/15494057/53665294668376694999 : 1AA5A6BED7790E8E PRP: Verified (Factored) PRP without proof (not generated)
2019-01-08	TJAOI	F	Factor: 53665294668376694999 / TF: 65-66
2017-10-20	Oliver Kruse	C-PRP	M1936757/15494057 : 690C3473671D5723 PRP: Verified (Factored) PRP without proof (not generated)
2017-09-30	alpertron	C-PRP	M1936757/15494057 : 690C3473671D5723 PRP: Verified (Factored) PRP without proof (not generated)
2016-03-16	alpertron	NF-PM1	B1=500000, B2=15000000, E=12