---
title: "Is it Prime? - Reviews, Revenue and Downloads in United States | Apple App Store"
description: "This application serves only one function - to satisfy your curiosity when you wonder whether a given number is prime or not.  You put in the number, it says yes or no.   Really, that's all it does."
---

# Is it Prime? — United States

![Is it Prime? App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple116/v4/cb/62/bb/cb62bb72-fe5d-d584-b4db-2b4ce694a5bc/AppIcon-1x_U007emarketing-0-10-0-85-220.png/400x400bb.png)

**Developer:** [Wismar](https://apptail.io/developer/wismar-zlIe)
**Category:** Utilities
**Rating:** 3.2/5 (5 ratings)
**Price:** Free
**Bundle ID:** com.andywismar.isitprime
**Store:** Apple App Store
**Country:** United States
**Version:** 2.0.29 (released 2022-01-14)
**Original Release:** 2009-08-11

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id326095651)
**AppTail Page:** [https://apptail.io/app/is-it-prime-yNOf/united-states](https://apptail.io/app/is-it-prime-yNOf/united-states)

## Is it Prime? Description
This application serves only one function - to satisfy your curiosity when you wonder whether a given number is prime or not.  You put in the number, it says yes or no.


Really, that's all it does.

## Is it Prime? Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/Purple126/v4/98/92/98/98929844-ac01-8d7b-d8c5-2a9dc6fa78f5/pr_source.png/640x960.png)

## Is it Prime? Rating Breakdown in United States
- 5 stars: 2 (40%)
- 4 stars: 1 (20%)
- 3 stars: 0 (0%)
- 2 stars: 0 (0%)
- 1 stars: 2 (40%)

## Is it Prime? Reviews in United States

### ***** "Love this app!"
I got this app years ago and I have never had a problem with it.  I am surprised there aren’t more users.  I teach math and have used it more than once for really large numbers.
-- Bald Legal Eagle, 2019-05-31

### *---- "Seems broken"
Try putting in 3141592653
-- Xhin K, 2018-04-15

### ****- "Yay!"
So happy to see an update to this handy little app. Helping my kids with math homework has been way easier since I downloaded it years ago. Thanks!
-- ExPalmNewton, 2017-11-18

### *---- "Wha?"
I enter a number, it ignores it and tells me another number is prime. Useless.
-- JSH:RxM, 2014-04-16

### ***** "I Love It!"
I have a little obsession with prime numbers, so this app is great fun for me.  Back in high school (in 1975) I was in the first computer programming class in the LAUSD.  I wrote a little program to give me a list of prime numbers.  The program would be run, at night, on the school districts IBM 360, and took forever (many minutes) just to calculate a number as small 103.  This app handles much much larger numbers with ease, in fractions of a second.  I love it!
-- NW-Junkfood, 2012-12-11

### ***** "Great"
Great app! My only complaint is that when a number is composite, the app doesn't give you its prime factorization. For example, it'll say 12 = 2*6 instead of 12 = 2*2*3
-- Dfrtx, 2012-05-11

### ***** "Works good"
Very awesome I needed it for homework and it helped me!!! 5Stars!!!
-- Hadee Alhassanawi, 2012-04-10

### ***-- "Good"
It would be awesome if it could tell u its factors to
-- Scarecrow524, 2011-12-09

[View all Is it Prime? reviews and detailed analytics on AppTail](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=reviews)




## Apps Similar to Is it Prime?
- [電卓 PrimeCalc - 余り、素因数分解、自動計算](https://apptail.io/app/primecalc-cnbc/united-states)
- [Dozecal](https://apptail.io/app/dozecal-aEFc/united-states)
- [InterCalc](https://apptail.io/app/intercalc-pYod/united-states)
- [RedisFerry-Redis Client](https://apptail.io/app/redisferry-redis-client-ZbAd/united-states)
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- [Metiax Clockx](https://apptail.io/app/metiax-clockx-AMde/united-states)
- [Calculator with fractions](https://apptail.io/app/calculator-with-fractions-BQmn/united-states)
- [Talking Tally Counter](https://apptail.io/app/talking-tally-counter-lwBp/united-states)
- [Simply Customize It!](https://apptail.io/app/simply-customize-it-tEoq/united-states)
- [isPrime?](https://apptail.io/app/isprime-gGKq/united-states)

## Is it Prime? Available In
- [United States](https://apptail.io/app/is-it-prime-yNOf/united-states)
- [United Kingdom](https://apptail.io/app/is-it-prime-yNOf/united-kingdom)
- [Canada](https://apptail.io/app/is-it-prime-yNOf/canada)
- [Uganda](https://apptail.io/app/is-it-prime-yNOf/uganda)
- [Ireland](https://apptail.io/app/is-it-prime-yNOf/ireland)
- [Australia](https://apptail.io/app/is-it-prime-yNOf/australia)
- [North Macedonia](https://apptail.io/app/is-it-prime-yNOf/north-macedonia)

---

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