23 002 949 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
4954946692725644025647	22	72.1	2018-06-20 18:46:19
22028107556040638555162809	26	84.2	2018-06-20 18:46:19

Status	Date	User	Residue	Shift
Bad		Martin Fahlgren	9D83E8F44DF0EFB1	13222836
Verified (Factored)	2008-05-12	Sturle Sunde	AC4E53DE9100BCDC	17951433
Verified (Factored)	2008-06-06	Sturle Sunde	AC4E53DE9100BCDC	19419054
Verified (Factored)	2015-04-14	MadPoo	AC4E53DE9100BCDC	10322157

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2018-06-29	Anton Repko	C7201095FC2193D4	2	9957858	5	3
Verified	2020-06-10	Jaytholomew	C7201095FC2193D4	2	18305352	5	3

P-1 factors

Date	Factor	B1	B2
2018-06-20	109148098681808331270822047589474646398256562423	400000	10000000

History

Date	User	Type	Result
2020-06-10	Jaytholomew	C-PRP	M23002949/4954946692725644025647/22028107556040638555162809 : C7201095FC2193D4 PRP: Verified PRP without proof (not generated)
2018-06-29	Anton Repko	C-PRP	M23002949/4954946692725644025647/22028107556040638555162809 : C7201095FC2193D4 PRP: Verified PRP without proof (not generated)
2018-06-21	Anton Repko	NF	no factor from 2^71 to 2^72
2018-06-20	Anton Repko	F-PM1	Factor: 109148098681808331270822047589474646398256562423 / (P-1, B1=400000, B2=10000000, E=12)
2015-04-14	MadPoo	C-LL	AC4E53DE9100BCDC
2015-03-31	VictordeHollander	NF	no factor from 2^70 to 2^71
2015-03-31	VictordeHollander	NF	no factor from 2^69 to 2^70
2015-03-19	NR	NF	no factor from 2^68 to 2^69
2015-03-19	NR	NF	no factor from 2^67 to 2^68
2008-06-06	Sturle Sunde	C-LL	AC4E53DE9100BCDC
2008-05-12	Sturle Sunde	C-LL	AC4E53DE9100BCDC