19 616 743 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

Composite: 1 known prime factor

Factored

Factor	Digits	Bits	Date
1380363560835072056657	22	70.2	2021-04-09 10:38:40

Status	Date	User	Residue	Shift
Bad	2004-08-20	Jussi Koivula	5FDE4C5498E225F0	836133
Verified (Factored)	2004-12-23	ParVe-IT	CAB638433459D6A0	8592999
Verified (Factored)	2007-10-29	Scott Kurowski	CAB638433459D6A0	15931838

History

Date	User	Type	Result
2025-06-16	Greg	F	Factor: 1380363560835072056657 / TF: 70-71
2021-04-09	-Anonymous-	F	Factor: 1380363560835072056657 / TF: 70-71*
2019-11-18	lycorn	NF	no factor from 2^69 to 2^70
2017-11-11	ramgeis	NF	no factor from 2^68 to 2^69
2013-11-27	Nesowa	NF	no factor from 2^67 to 2^68
2013-11-27	Nesowa	NF	no factor from 2^66 to 2^67