# How to Use patterns.prime

**URL:** <https://cl.desmos.com/t/how-to-use-patterns-prime/7617>\
**Category:** Questions\
**Tags:** patterns\
**Created:** [December 25, 2024, 6:11pm UTC](https://cl.desmos.com/t/how-to-use-patterns-prime/7617 "2024-12-25T18:11:32Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![Alexander\_3691](https://yyz1.discourse-cdn.com/flex031/user_avatar/cl.desmos.com/alexander_3691/32/3959_2.png) [@Alexander\_3691](https://cl.desmos.com/u/Alexander_3691)\
**Post date:** [December 25, 2024, 6:11pm UTC](https://cl.desmos.com/t/how-to-use-patterns-prime/7617/1 "2024-12-25T18:11:32Z")

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Hi Everybody,

Does anybody know how to use the function patterns.prime? The CL does not offer any suggestions after “prime”.

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**Author:** ![mxepstein](https://yyz1.discourse-cdn.com/flex031/user_avatar/cl.desmos.com/mxepstein/32/116_2.png) [@mxepstein](https://cl.desmos.com/u/mxepstein)\
**Post date:** [December 31, 2024, 5:34pm UTC](https://cl.desmos.com/t/how-to-use-patterns-prime/7617/2 "2024-12-31T17:34:42Z")

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Hi,

I believe that patterns.prime is about things like A’ or C’‘’.

If you are trying to detect if an integer is prime you could use a function like this…  
[https://www.desmos.com/calculator/oihy0ykkjc](https://www.desmos.com/calculator/oihy0ykkjc)

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**Author:** ![Mike\_Gleeson](https://yyz1.discourse-cdn.com/flex031/user_avatar/cl.desmos.com/mike_gleeson/32/650_2.png) [@Mike\_Gleeson](https://cl.desmos.com/u/Mike_Gleeson)\
**Post date:** [December 31, 2024, 6:26pm UTC](https://cl.desmos.com/t/how-to-use-patterns-prime/7617/3 "2024-12-31T18:26:20Z")

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I’d like to know about this prime pattern too, there are a bunch of new ones that dropped recently. Any updates from Desmos would be most welcome.

@mxepstein unfortunately that function doesn’t really work too well as it renders expressions equally valid as numbers themselves and gives false positives to numbers like `pi`, etc.

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**Author:** ![Alexander\_3691](https://yyz1.discourse-cdn.com/flex031/user_avatar/cl.desmos.com/alexander_3691/32/3959_2.png) [@Alexander\_3691](https://cl.desmos.com/u/Alexander_3691)\
**Post date:** [January 3, 2025, 3:24am UTC](https://cl.desmos.com/t/how-to-use-patterns-prime/7617/4 "2025-01-03T03:24:07Z")

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Thank you very much,

I really enjoyed studying your function!

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**Author:** ![system](https://canada1.discourse-cdn.com/flex031/uploads/desmos/original/2X/f/f5bd144684474e9a2f333002cde9840e52c5dbd3.png) [@system](https://cl.desmos.com/u/system)\
**Post date:** [January 5, 2025, 3:24am UTC](https://cl.desmos.com/t/how-to-use-patterns-prime/7617/5 "2025-01-05T03:24:43Z")

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Closed on January 5, 2025, 3:24am UTC

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