981 847 247 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 2⁷¹

TF target 2⁸⁵

Factored

Factor	Digits	Bits	Date
55332231356940799	17	55.6	2014-05-30 18:33:16

History

Date	User	Type	Result
2025-05-19	mikr	NF	no factor TF: 68-71
2014-05-30	TJAOI	F	Factor: 55332231356940799
2012-03-05	linded	NF	no factor TF: 65-66
2010-11-14	linded	NF	no factor TF: 64-65

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