1 979 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

Composite, with 2 known prime factors. Cofactor is composite.

Factored

Factor	Digits	Bits	Date
32392273	8	24.9	old
11349904759198125072187718192234394369366617	44	143.0	old

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	640 / 640
35	1000000	1566 / 1566
40	3000000	4588 / 4588
45	11000000	9201 / 9201
50	44000000	16550 / 16550
55	110000000	40830 / 40830
60	260000000	105362 / 105362
65	800000000	65621 / 194238

Estimated T-Level: 61.7 ⓘ

TF below 2^200 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-21	Oliver Kruse	772D725328BF6D0A	2	0	1	3
Verified	2017-10-02	kkmrkkblmbrbk	772D725328BF6D0A	2	0	1	3
Verified	2017-12-07	ATH	772D725328BF6D0A	2	483	1	3
Verified	2020-04-17	Oliver Kruse	E3EF34BF60007843	2	279	5	3
Verified	2020-08-12	_p95holder_	E3EF34BF60007843	2	396	5	3

History

Date	User	Type	Result
2024-03-16	masser	NF-PM1	B1=215000000000, B2=203010050649205800
2021-07-26	ViliamF	NF-PP1	Start=2/7, B1=1000000000, B2=221000000000
2020-08-12	_p95holder_	C-PRP	M1979/32392273/11349904759198125072187718192234394369366617 : E3EF34BF60007843 PRP: Verified PRP without proof (small exponent)
2020-04-17	Oliver Kruse	C-PRP	M1979/32392273/11349904759198125072187718192234394369366617 : E3EF34BF60007843 PRP: Verified PRP without proof (small exponent)
2017-12-07	ATH	C-PRP	M1979/32392273/11349904759198125072187718192234394369366617 : 772D725328BF6D0A PRP: Verified PRP without proof (small exponent)
2017-10-02	kkmrkkblmbrbk	C-PRP	M1979/32392273/11349904759198125072187718192234394369366617 : 772D725328BF6D0A PRP: Verified PRP without proof (not generated)
2017-09-21	Oliver Kruse	C-PRP	M1979/known_factors : 772D725328BF6D0A PRP without proof (not generated)
2016-09-07	kkmrkkblmbrbk	NF-PM1	B1=1000000000, B2=100000000000, E=12