1 923 293 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
4025633038543	13	41.9	old
1152161231193627932351	22	70.0	2019-02-16 05:22:47
2056389114578204357853953	25	80.8	2024-01-22 11:21:16

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)	2017-10-04	Oliver Kruse	169A5BB911C7BC1D	1	0	1	3
Verified (Factored)	2017-11-10	ATH	169A5BB911C7BC1D	1	1160955	1	3
Verified (Factored)	2019-02-17	artorollo	B7DB308F17A81D9B	2	1579009	5	3
Verified (Factored)	2019-02-17	ATH	B7DB308F17A81D9B	2	700559	5	3
Verified (Factored)	2019-02-17	alex	B7DB308F17A81D9B	2	482884	5	3
Verified	2024-01-22	Naegi Makoto	B7DB308F17A81D9B	3	517604	5	3

History

Date	User	Type	Result
2024-01-22	Jon Pace	CERT	PRP Certification Proof certified good
2024-01-22	Naegi Makoto	C-PRP	M1923293/4025633038543/1152161231193627932351/2056389114578204357853953 : B7DB308F17A81D9B PRP proof power = 7 PRP: Verified Proof certified good
2024-01-22	TJAOI	F-ECM	Factor: 2056389114578204357853953 / (ECM curve 41, B1=250000, B2=40000000, Sigma=4303018675695753)
2019-02-17	alex	C-PRP	M1923293/4025633038543/1152161231193627932351 : B7DB308F17A81D9B PRP: Verified (Factored) PRP without proof (not generated)
2019-02-17	ATH	C-PRP	M1923293/4025633038543/1152161231193627932351 : B7DB308F17A81D9B PRP: Verified (Factored) PRP without proof (not generated)
2019-02-17	artorollo	C-PRP	M1923293/4025633038543/1152161231193627932351 : B7DB308F17A81D9B PRP: Verified (Factored) PRP without proof (not generated)
2019-02-16	ATH	F-ECM	Factor: 1152161231193627932351 / (ECM curve 1, B1=50000, B2=5000000, Sigma=7956647423319231)
2017-11-10	ATH	C-PRP	M1923293/4025633038543 : 169A5BB911C7BC1D PRP: Verified (Factored) PRP without proof (not generated)
2017-10-04	Oliver Kruse	C-PRP	M1923293/4025633038543 : 169A5BB911C7BC1D PRP: Verified (Factored) PRP without proof (not generated)
2016-03-17	alpertron	NF-PM1	B1=500000, B2=15000000, E=12