8 724 319 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

Composite, with 3 known prime factors. Cofactor is composite.

Factored

Factor	Digits	Bits	Date
26833585838625392591	20	64.5	2012-05-28 02:31:33
74226527179439041369	20	66.0	2012-05-28 02:31:33
4967430367885856183191	22	72.1	2012-05-28 02:31:33

Status	Date	User	Residue	Shift
Verified (Factored)	1999-12-30	Mariusz Buraczyñski	DB853D6B30D45851	4007955
Verified (Factored)	2002-12-16	Hruska	DB853D6B30D45851	2335771

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2019-01-04	GunnarLu	88FE17C760FDE373	3	472982	5	3
Verified	2020-10-03	oodaira	88FE17C760FDE373	3	340517	5	3

History

Date	User	Type	Result
2025-04-23	beep	NF-PM1	B1=1900000, B2=10268428170
2020-10-03	oodaira	C-PRP	M8724319/26833585838625392591/74226527179439041369/4967430367885856183191 : 88FE17C760FDE373 PRP: Verified PRP without proof (not generated)
2019-01-04	GunnarLu	C-PRP	M8724319/26833585838625392591/74226527179439041369/4967430367885856183191 : 88FE17C760FDE373 PRP: Verified PRP without proof (not generated)
2012-05-28	James Heinrich	F-PM1	Factor: 9893948425753647218051318141410341116826278223498667572999089