# 2357!

> Fast-paced prime factorization division battle game for brain training. (iPhone/iPad app by HANAUTA INC..)

- Source: https://appshunter.io/ios/app/2357/id1079318619 (this page in markdown: same URL + `.md`)
- Developer: [HANAUTA INC.](https://appshunter.io/developer/492009717)
- Category: Games, Entertainment, Puzzle, Strategy
- Price: Free
- Rating: 4.00/5 from 2 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 7.0 · 156 MB
- Languages: American English
- Released: 2016-03-17
- Data updated: 2026-07-04
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/2357/id1079318619/reviews.md

## What is 2357!?

◇◇◇ 60-seconds division battle game!!◇◇◇
What you should do is to destroy the division ball !!
It's a simple game but profound and makes you smarter!!
With the combinations which is composed of primes(2,3,5,7,11,13,17,19),how many divisors can you compute!?

Be popular with who is fond of puzzle, crossword, sudoku, prime factorization etc. brain training games!!

◆ SIMPLE RULE
・Time limit: 60 seconds
・Throw the divison balls to destroy the target ball !!
・Destroy the target ball with several divisions ball in a time, get more hight score!!
・The number of target ball will become larger!!
・Simply put, it's Division.
・Or you can say it's Prime Factorization.

◆Easy to play
・Enjoy brief game in one-hand!!

◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇

◆ Ex.１
・When 「６」is the number of target ball
① Throw the number 「２」down
② Throw the number 「３」down
③ Get 6 points!!

◆ Ex. 2
・When 「６」is the number of target ball
① Throw the numbers「２」and「３」at the same time
② ６x２＝１２, Get １２ points!!

◆ Ex. ３
・When 「３０」is the number of target ball
①Throw the numbers「２」,「３」and「５」at the same time
②２x３x５＝３０, and Get ９０ points!!

◆ Tips to get higher score
・As you clear, the number of target ball will become larger!!
・Take Ex.2 for example, throw 2 numbers at the same time to get double score!!
・throw 4 numbers at the same time to get quadruple
 score!!
・Play more and remind the combination!!
・Try hard to avoid all mistakes!!
・How about challenge an astronomical number!?

◆ Win the Global Ranking
・Battle to other users in GameCenter in the world!!
・To be the champion！

◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇

◆ Prime Factorization means?
・Simply put, divide the target number to be 「１」finally!!

◆ It may looks simple but profound
・Even the schoolchild can play the game

◆ Brain training by intuition
・Everyone can enjoy it!!
・Also good brain training to adult!!
・Play when you're free!!
・Train the calculating skill more faster!!
・Activate your brain!!

◆Someone who will definitely like it
・Solve Prime Factorization in speed!!
・Avoid dementia and Alzheimer's disease!!
・Popular!! Of course it's for free!!
・A good way to communicate with children and parents!!
・Different from other puzzle games!!
・Play it anytime!!
・Show your calculating skill!!

◆CREDIT
HANAUTA INC.
 Ueki
 Mitsuda
 Nojima
 Fukutomi

## Key features

- 60-second division battles
- Destroy target numbers with prime factors
- Score multipliers for simultaneous throws
- Global ranking competition
- Brain training and calculation skill improvement
- Intuitive and easy one-hand play

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/2357/id1079318619/reviews.md

### 4/5 — Great way to train your brain!

*2016-07-27*

This game is quite addicting. The only thing I'd change is adding levels so I can start where I stopped and not have to restart each time.

## Frequently asked questions about 2357!

### What is the main objective of 2357!?

The main objective is to destroy target numbers by throwing division balls composed of prime factors. You aim to achieve the highest score by efficiently breaking down numbers within the 60-second time limit.

### How does the scoring work in 2357!?

You score points by successfully dividing the target number. Using combinations of prime factors, especially throwing multiple at once, can multiply your score, leading to higher potential scores as target numbers increase.

### Can I play 2357! offline?

The description does not specify offline play capabilities. However, the mention of global ranking and battling other users suggests that an internet connection may be required for full functionality.

### Is 2357! suitable for children?

Yes, 2357! is rated '4+' and is described as playable by schoolchildren. It's also noted as good brain training for adults and a way to communicate with children and parents.

### How often is 2357! updated?

The app was last updated on April 18, 2016, with version 1.2. This indicates a less frequent update schedule for this particular game.

### What devices does 2357! support?

2357! supports iPhone and iPod devices. It is designed for one-handed play, making it convenient for mobile use.

### Does 2357! have ads?

No, 2357! does not contain advertisements. It is a completely free game without any ad interruptions.

### What makes 2357! different from other puzzle games?

2357! focuses on rapid division and prime factorization within a strict time limit, offering a unique blend of speed and mathematical challenge. It aims to activate the brain and train calculating skills in an intuitive way.

## Version history (last 3 releases)

### 1.2 — 2016-04-18

This app has been updated by Apple to display the Apple Watch app icon.

bug fixed.

### 1.1 — 2016-04-06

Fix bugs and add effects

### 1.0 — 2016-03-17

No release notes.

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All apps by HANAUTA INC.: https://appshunter.io/developer/492009717

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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 2026-07-04.*