# Largest prime number known

**URL:** <https://forum.kirupa.com/t/largest-prime-number-known/173429>\
**Category:** Uncategorized\
**Created:** [December 25, 2005, 6:08am UTC](https://forum.kirupa.com/t/largest-prime-number-known/173429 "2005-12-25T06:08:26Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![anon1712571](https://avatars.discourse-cdn.com/v4/letter/a/9dc877/32.png) [@anon1712571](https://forum.kirupa.com/u/anon1712571)\
**Post date:** [December 25, 2005, 6:08am UTC](https://forum.kirupa.com/t/largest-prime-number-known/173429/1 "2005-12-25T06:08:26Z")

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[9,152,052 digits](http://www.mersenneforum.org/txt/43.txt) long!