Marin Mersenne 2^P-1
Username
Password
Forgot password?
Blue
Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:





MnDetails
7466989
Composite, with 4 known prime factors. Cofactor is composite.
Trial Factored to 268
TF target 267
Factored
FactorDigitsBitsDate
32257392491031.6old
1038654813479484113212166.52020-04-22 12:45:24
221322705534883948316190492684.22024-01-18 09:25:24
221380862649118855142219729512994.22025-10-14 12:01:36
P-1 factors
DateFactorsB1B2
2025-10-1422138086264911885514221972951
25000004241723850
2024-01-1822132270553488394831619049
10460001046000
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors		ShiftTypeBase
Factored
PRP without proof (not generated)
2018-03-20Daniel Bamberger51D862AF50C68F241401188653
Factored
PRP without proof (not generated)
2019-06-14marssystems51D862AF50C68F241249705353
Factored
PRP without proof (not generated)
2020-04-23trebor51D862AF50C68F242313960653
Factored
Certified Good
2024-01-19Naegi Makoto51D862AF50C68F243497059353
Verified
Certified Good
2025-10-20Michel Yamagishi51D862AF50C68F244366836153
History
DateUserTypeResult
2025-10-20Stephan GruppCERT
Proof certified good
2025-10-20Michel YamagishiC-PRPM7466989/3225739249/103865481347948411321/22132270553488394831619049/22138086264911885514221972951 : 51D862AF50C68F24
Proof Certified Good

Proof Power: 8

2025-10-14Sid & AndyF-PM1Factor: 22138086264911885514221972951 / B1=2500000, B2=4241723850
2024-01-19curtiscCERT
Proof certified good
2024-01-19Naegi MakotoC-PRPM7466989/3225739249/103865481347948411321/22132270553488394831619049 : 51D862AF50C68F24
Proof Certified Good

Proof Power: 8

2024-01-18Stef42F-PM1Factor: 22132270553488394831619049 / B1=1046000
2020-04-23treborC-PRPM7466989/3225739249/103865481347948411321 : 51D862AF50C68F24
2020-04-22TJAOIFFactor: 103865481347948411321
2019-06-14marssystemsC-PRPM7466989/3225739249 : 51D862AF50C68F24
2018-03-20Daniel BambergerC-PRPM7466989/3225739249 : 51D862AF50C68F24