# PrimeXTime — Kill time playing with primes

> A prime number puzzle game for brain exercise and time killing. (iPhone/iPad app by Rick Hutchinson.)

- Source: https://appshunter.io/ios/app/primextime/id1253706544 (this page in markdown: same URL + `.md`)
- Developer: [Rick Hutchinson](https://appshunter.io/developer/1253697991)
- Category: Games
- Price: Free
- Rating: 5.00/5 from 2 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 17.6 · 6 MB
- Languages: American English
- Released: 2017-07-07
- Data updated: 2026-06-01
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/primextime/id1253706544/reviews.md

## What is PrimeXTime?

Kill some time and give your brain a little exercise at the same time with this simple game.  You start with a random number and then start dividing by single-digit primes (2, 3, 5 or 7).  When you can't do any more divisions you 'bump' the number -- multiplying by 10 and adding any single digit.  You win the game by reducing the original number to 1.

## Key features

- Number division by primes
- Strategic bumping mechanic
- Goal to reduce number to 1
- Brain exercise gameplay
- Simple, intuitive interface

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/primextime/id1253706544/reviews.md

### 5/5 — Excellent

*2019-12-11*

Excellent

## Frequently asked questions about PrimeXTime

### What is the main objective of PrimeXTime?

The main objective of PrimeXTime is to reduce a starting random number to 1 by strategically dividing it by single-digit primes (2, 3, 5, or 7) and using the 'bump' mechanic.

### How do you 'bump' a number in PrimeXTime?

You 'bump' a number in PrimeXTime by multiplying the current number by 10 and then adding any single digit to it. This is done when no more prime divisions are possible.

### Is PrimeXTime suitable for younger players?

Yes, PrimeXTime has an age rating of 4+, making it suitable for younger players who are learning about numbers and basic arithmetic.

### Can I play PrimeXTime offline?

The provided data does not specify offline play capabilities. However, as a single-player puzzle game, it is likely playable without an internet connection.

### What devices is PrimeXTime available on?

PrimeXTime is available on iPhone and iPad devices.

### How often is PrimeXTime updated?

The latest version is 2.0, released on January 16, 2026. This indicates a recent update, though the frequency of future updates is not specified.

### Does PrimeXTime have ads?

No, PrimeXTime does not contain advertisements, as indicated by the 'hasAds' flag being false.

### What is the user feedback on PrimeXTime?

PrimeXTime has a perfect rating of 5.0 stars based on 2 reviews, suggesting very positive user sentiment among its current players.

## Version history (last 5 releases)

### 2.0 — 2026-01-16

- Updated look with new background colors
- Improved accuracy for statistics
- Minor updates and fixes

### 1.7.1 — 2022-10-17

Dark mode improvements

### 1.7 — 2022-10-14

Minor updates

### 1.6 — 2019-08-15

Maintenance update w/minor display improvements

### 1.5 — 2019-04-16

Maintenance release

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| --- | --- | --- | --- |
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| [Sosu der](https://appshunter.io/ios/app/sosu-der/id6483364985) | — | Free | Games |
| [Prime number girls collection](https://appshunter.io/ios/app/prime-number-girls-collection/id1603031571) | — | Free | Games |
| [Froggy Feed!](https://appshunter.io/ios/app/froggy-feed/id6447080372) | 5.0 (2) | Free | Games |
| [Prime Number or No:Simple Game](https://appshunter.io/ios/app/prime-number-or-nosimple-game/id6450160686) | 2.0 (1) | Free | Games |

## More apps by Rick Hutchinson

- [HatPick-Lite](https://appshunter.io/ios/app/hatpick-lite/id1253697992)
- [HatPick](https://appshunter.io/ios/app/hatpick/id1253704501)
- [PrimeXTime-Lite](https://appshunter.io/ios/app/primextime-lite/id1253704882)
- [Workoutz](https://appshunter.io/ios/app/workoutz/id1256681307)
- [So Much Resource](https://appshunter.io/ios/app/so-much-resource/id1470086569)

All apps by Rick Hutchinson: https://appshunter.io/developer/1253697991

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-01.*