156 451 753 Exponent Status

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

PrimeNet Exponent Status

M_n

Details

Composite: 1 known prime factor

Trial Factored to 2⁷⁸

TF target 2⁷⁸

Factored

Factor	Digits	Bits	Date
1153075028173604013182811986600447	34	109.8	2025-09-13 22:44:04

P-1 factors

Date	Factors	B1	B2
2025-09-13	1153075028173604013182811986600447	866000	866000

History

Date	User	Type	Result
2025-09-13	Ryan Propper	F-PM1	Factor: 1153075028173604013182811986600447 / B1=866000
2025-05-20	brian-nebius	NF	no factor TF: 77-78
2024-11-21	voidf	NF	no factor TF: 76-77
2024-08-19	SRBase	NF	no factor TF: 75-76
2023-02-22	SRBase	NF	no factor TF: 74-75
2021-11-16	SRBase	NF	no factor TF: 73-74
2018-08-18	David Hruska	NF	no factor TF: 72-73
2018-05-25	David Hruska	NF	no factor TF: 71-72
2018-02-25	proxy2222	NF	no factor TF: 70-71
2017-11-08	La Güira	NF	no factor TF: 69-70
2017-03-08	tmorrow	NF	no factor TF: 68-69
2016-05-07	Derek	NF	no factor TF: 67-68
2015-04-15	tsc	NF	no factor TF: 66-67
2013-02-09	Richard	NF	no factor TF: 65-66
2011-01-25	sasaki3	NF	no factor TF: 64-65