Icon of program: Prime95 64-bit

Prime95 64-bit for Windows

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Editors’ Review

Download.com staff
Prime95 enables your computer to join the Great Internet Mersenne Prime Search (GIMPS). Contribute processing power to find rare, large prime numbers.

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  • Pros

    • Participate in scientific research for prime number discovery
    • Utilizes distributed computing to harness collective power
    • Supports a long-running and successful research project
    • Accessible to users with standard computing hardware

  • Cons

    • Requires significant processing time for results
    • Limited direct user interaction or customization
    • Core functionality is highly specialized for prime searching
Icon of program: Prime95 64-bit

Prime95 64-bit for Windows

Download now

Used Prime95 64-bit for Windows?

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Full Specifications

GENERAL
Release
Latest update
Version
29.4b7
OPERATING SYSTEMS
Platform
Windows
Operating System
  • Windows 7
  • Windows XP
  • Windows Vista
  • Windows 10
Additional Requirements
None
POPULARITY
Total Downloads
288,187
Downloads Last Week
4
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Developer’s Description

By GIMPS
Join the search and discover one of the Mersenne prime numbers.
Install Prime95 and join the search and discover one of the Mersenne prime numbers. Prime numbers have long fascinated amateur and professional mathematicians. An integer greater than one is called a prime number if its only divisors are one and itself. The first prime numbers are 2, 3, 5, 7, 11, etc. For example, the number 10 is not prime because it is divisible by 2 and 5. A Mersenne prime is a prime of the form 2P-1. The first Mersenne primes are 3, 7, 31, 127 (corresponding to P = 2, 3, 5, 7). There are only 44 known Mersenne primes. GIMPS, the Great Internet Mersenne Prime Search, was formed in January 1996 to discover new world-record-size Mersenne primes. GIMPS harnesses the power of thousands of small computers like yours to search for these "needles in a haystack".
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