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Information about this software:
Prime95 is a freeware prime number application: An extensive CPU stress test diagnostic which searches for prime numbers. The download is available as a ZIP file and the latest version is 29.4.

Main Details

Web links and company details
Publisher Mersenne Research
Name Prime95
Headline An extensive CPU stress test diagnostic which searches for prime numbers

Trust Ratings

How trusted is this software publisher?
Virus tests Prime95 is clean of viruses and malware.
Google Safebrowsing This publisher is safe.
5 / 10
Trust Rank
8 / 10
Domain Rating 94 / 100
This publisher is trusted. [High Confidence]
LO4D Ranking Currently ranks 8th (of 39) in terms of popularity
User Rating 4 / 5.0 (based on 10 votes).
Review No. Page maintained by Fernando Ortega

Version History

Old versions of Prime95
Current version Prime95 29.4 (5.15 MB)
Release status Major release with a minor update.
Version: V29 Minor: 4
Old versions 29.3, 29.1, 28.10, 28.9, 28.7, 28.6, 28.5, 27.9,
Distributed as ZIP (ZIP Archive)
Found with Prime95 has most often been found with prime95, prime95 download and prime95 haswell.

It may also be found on other top-tier sites such as Softpedia, MajorGeeks or FileHippo.
Compatible with Windows 10, Windows 8, Windows 7, Windows Vista, Windows XP

License and Usage

What you can and cannot do
Released as Freeware
Restrictions Completely free with no restrictions.
EULA Mersenne Research includes an EULA which must be accepted in order to complete installation.
Pricetag $0.00 (Free to use)
Download5.15 MB - Tested clean

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