5 186 521 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
1825655393	10	30.8	old
42102114769252964183	20	65.2	2018-07-18 10:21:57

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-09-20	kkmrkkblmbrbk	B0164A174CED50DF	1	0	1	3
Verified (Factored)	2018-05-26	Chang Chia-Tche	B0164A174CED50DF	1	4719020	1	3
Verified	2018-07-24	_p95holder_	202885652F205DB6	2	844172	5	3
Verified	2018-07-24	ATH	202885652F205DB6	2	1403836	5	3

History

Date	User	Type	Result
2025-03-01	Sid & Andy	NF	no factor from 2^68 to 2^70
2025-02-17	Sid & Andy	NF-PM1	B1=3800000, B2=9245791170
2024-09-19	cramsey87	NF-PM1	B1=300000, B2=408170070
2023-05-11	This -Anonymous-	NF-PM1	B1=50000, B2=1000000
2018-07-24	ATH	C-PRP	M5186521/1825655393/42102114769252964183 : 202885652F205DB6 PRP: Verified PRP without proof (not generated)
2018-07-24	_p95holder_	C-PRP	M5186521/1825655393/42102114769252964183 : 202885652F205DB6 PRP: Verified PRP without proof (not generated)
2018-07-18	TJAOI	F	Factor: 42102114769252964183 / TF: 65-66
2018-05-26	Chang Chia-Tche	C-PRP	M5186521/1825655393 : B0164A174CED50DF PRP: Verified PRP without proof (not generated)
2017-09-20	kkmrkkblmbrbk	C-PRP	M5186521/1825655393 : B0164A174CED50DF PRP: Verified PRP without proof (not generated)