# Prime Factors +Calc — No ads. Clean calculator

> No ads. Clean calculator (iPhone/iPad app by Kazuaki Oshiba.)

- Source: https://appshunter.io/ios/app/prime-factors-plus-calc/id6745752731 (this page in markdown: same URL + `.md`)
- Developer: [Kazuaki Oshiba](https://appshunter.io/developer/1813699478)
- Category: Utilities, Education
- Price: Free
- Age rating: 4+
- Requires: iOS 16.0 · 1 MB
- Languages: American English, Japanese
- Released: 2025-05-12
- Data updated: 2026-08-31
- User reviews in markdown: https://appshunter.io/ios/app/prime-factors-plus-calc/id6745752731/reviews.md

## What is Prime Factors +Calc?

A simple and easy-to-use app for prime factorization and divisors display.
It also features a calculator that supports fractions.


## Version history (last 5 releases)

### 2.1.0 — 2026-08-19

- Improved calculator quality.
- Expanded the copy feature to all calculation results.
- Fixed layout issues on macOS.

### 2.0.5 — 2026-08-13

Minor UI adjustments for iOS 26.

### 2.0.4 — 2025-10-13

Fixed the issue where the keypad's responsive area.

### 2.0.3 — 2025-10-07

Improved the UI in Window Mode on iPadOS 26.

### 2.0.2 — 2025-10-03

- Fixed keypad type not saving
- Updated UI for iOS 26

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## More apps by Kazuaki Oshiba

- [PuppyChime](https://appshunter.io/ios/app/puppychime/id6752926267)

All apps by Kazuaki Oshiba: https://appshunter.io/developer/1813699478

## Related topics

[801 prime](https://appshunter.io/ios/topics/801-prime) · [prime factorization factorizer](https://appshunter.io/ios/topics/prime-factorization-factorizer) · [sao integral factor](https://appshunter.io/ios/topics/sao-integral-factor)

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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 2026-08-31.*