# Incorrect answer - Mersenne primes

**URL:** <https://forums.pixeltailgames.com/t/incorrect-answer-mersenne-primes/36782>\
**Category:** Open Trivia DB\
**Created:** [April 7, 2020, 2:22pm UTC](https://forums.pixeltailgames.com/t/incorrect-answer-mersenne-primes/36782 "2020-04-07T14:22:34Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![Mattio](https://forums.pixeltailgames.com/user_avatar/forums.pixeltailgames.com/mattio/32/32656_2.png) [@Mattio](https://forums.pixeltailgames.com/u/Mattio)\
**Post date:** [April 7, 2020, 6:09pm UTC](https://forums.pixeltailgames.com/t/incorrect-answer-mersenne-primes/36782/2 "2020-04-07T18:09:26Z")

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This was actually mentioned previously in the post linked below some time ago. But it’s understandable you missed it because they actually put it into Trivia Suggestions instead of Open Trivia DB.  
Just thought I’d link it here too.

> [@Errors In the Questions](https://forums.pixeltailgames.com/t/errors-in-the-questions/35004):
>
> I recently had a question about Mersenne primes. After getting the question wrong and looking up what they were I discovered an error in the question. The question was: What is the first Mersenne prime over 1000? The answer given was 1279. A Mersenne prime is a prime that is 1 less than a power of 2. 1280 is not a power of two. The question should read instead: What is the first exponent over 1000 that results in a Mersenne prime?

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