3 488 449 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
200348602969	12	37.5	old

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	2017-11-07	Oliver Kruse	88EFCF9EAD332371	1	444962	5	3
Verified	2017-12-16	ATH	88EFCF9EAD332371	1	3363728	5	3

History

Date	User	Type	Result
2022-08-07	Joss	NF-PM1	B1=3488449, B2=3516076200
2022-06-03	LordJulius	NF	no factor from 2^66 to 2^67
2021-12-21	Joss	NF-PM1	B1=3488449, B2=156883650
2021-08-10	Joss	NF-PM1	B1=3488449, B2=34884490, E=12
2021-08-04	Joss	NF-PM1	B1=3488449, B2=10465347, E=6
2021-05-31	Joss	NF	no factor from 2^67 to 2^68
2021-05-31	Joss	NF-PM1	B1=3488449
2021-02-24	Joss	NF	no factor from 2^65 to 2^66
2021-02-18	Joss	NF-PM1	B1=348844, B2=3837293, E=6
2021-02-16	Joss	NF-PM1	B1=348844
2017-12-16	ATH	C-PRP	M3488449/200348602969 : 88EFCF9EAD332371 PRP: Verified PRP without proof (not generated)
2017-11-07	Oliver Kruse	C-PRP	M3488449/200348602969 : 88EFCF9EAD332371 PRP: Verified PRP without proof (not generated)