Prime Factorization vs 素因数分解キングダム
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Prime Factorization
This game challenges you to break down numbers into their prime factors until you reach one. It offers a simple yet engaging way to exercise your brain through number manipulation.
- Number factorization gameplay
- Objective: reduce number to 1
- Brain training exercises
- Simple mechanics
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This app is "Brain training game". How to play is simple,divide the number displayed. Make the number to be "1". director App Kaihatsu Man music 魔王魂 Coding：アプリ開発マン
素因数分解キングダム
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素因数分解キングダムはゲームを通じて、素因数分解を学ぶことができるアプリです。 単にゲームとして楽しむだけでなく、定期テスト対策や受験勉強の一環としても活用できます。 また、脳トレとしても効果的なので、学生以外にもおすすめです。 "Prime Factorization Kingdom" is an app that allows users to learn prime factorization through gameplay. Not only can it be enjoyed as a game, but it can also be utilized as part of regular test preparation or entrance exam studies. Additionally, it is effective as a brain-training tool, making it highly recommended not just for students but for people of all ages.
Screenshots
Verdict
The clearest difference is update cadence: 素因数分解キングダム at weekly against Prime Factorization's every 6 weeks. Prime Factorization's advantage is iOS requirement (7.1 vs 16.0). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Prime Factorization ships an update every 6 weeks, 素因数分解キングダム weekly. The most recent releases landed on November 2, 2026 and October 30, 2026 respectively.
| Parameter | Prime Factorization | 素因数分解キングダム |
|---|---|---|
| Price | Free | Free |
| Rating | 2.5 (4 ratings) — better | — |
| Positive reviews | 66.7% of reviews | — |
| Number of ratings | 4 — better | — |
| Update frequency | Every 6 weeks | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 7.1 — better | 16.0 |
| Further details — not scored | ||
| Size | 22 MB | 55 MB |
| Age rating | 4+ | 4+ |
| Developer | NAKAYUBI CORPORATION | Yuta Matsuda |
In-app purchases
Prime Factorization
No in-app purchases
素因数分解キングダム
No in-app purchases
