33 219 253 Exponent Status

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

PrimeNet Exponent Status

M_n

Details

Composite, with 1 known prime factor. Cofactor is composite.

Trial Factored to 2⁷⁵

TF target 2⁷¹

Factored

Factor	Digits	Bits	Date
2391786217	10	31.2	old

Status	Proof	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	Certified Good	2023-03-02	Lars H	943AB06AB3540B67	1	18200396	5	3

History

Date	User	Type	Result
2026-03-04	PrimeNR	NF-PM1	B1=10000000, B2=8491480140
2023-03-02	curtisc	CERT	Proof certified good
2023-03-02	Lars H	C-PRP	Proof Certified Good Proof Power: 9
2023-02-28	Lars H	NF	no factor TF: 74-75
2023-02-28	Lars H	NF	no factor TF: 73-74
2023-02-28	Lars H	NF	no factor TF: 72-73
2023-02-28	Lars H	NF	no factor TF: 71-72
2022-12-12	LordJulius	NF	no factor TF: 70-71
2022-12-12	LordJulius	NF	no factor TF: 69-70
2022-12-12	LordJulius	NF	no factor TF: 68-69
2022-12-12	LordJulius	NF	no factor TF: 67-68
2022-12-12	LordJulius	NF	no factor TF: 66-67