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Factor samurai is a great way to learn times tables. You play as the samurai whose sacred duty is to cut all the numbers down to their prime factors.

You will be thrown one number after the next, cut them up if they can be factored into smaller values, if not, if they are prime, do not cut them.

Prime numbers are numbers that cannot be divided into small whole numbers. Two, three, five, seven, eleven, and thirteen are all examples of prime numbers. Four is not prime because it can be broken down in the whole numbers two times two.

Factor Samurai will reinforce the arithmetic principles of multiplication and division by continually challenging the player to remember which numbers can be factored into smaller values, and which ones can't.

As the player slices numbers into factors, those factors can be broken down further, until they are split into their prime factors.

Knowing that 63 is 3 times 3 times 7 or that 128 is 2 raised to the seventh power (7 twos!) is how you become a true Factor Samurai!

Factor Samurai is used extensively in the classroom. More than half of the recorded downloads are to public schools.

What's New

Version 1.74

Fix for crash on iOS 8
Fix for score squish on iPhone

Ratings and Reviews

5 out of 5

5 Ratings

5 Ratings

Haris's Review

Haris m8

I think that this app is great because it helps you with your factors and it's also a fun way to practice maths facts. It's a good way to memorise your factors and it the game gets more challenging as the player gets better. I also really like this game because it is really similar to the game called Fruit Ninja which everyone loves.
It's game also doesn't take long to download which is convenient.

The only bad thing about this app is that it isn't good for kids who haven't learnt about multiplication and division.

my 9yo loves it


He very quickly learned which ones were prime numbers and which weren't and he loved playing it over and over, so great for re-inforcing the learning.


bike monkey

A superb piece of work - fun, educational, with great user experience - top marks


Third Rail, LLC
138.4 MB
Requires iOS 8.0 or later. Compatible with iPhone, iPad and iPod touch.
English, French, German, Japanese, Simplified Chinese, Spanish, Swedish
Age Rating
Rated 4+
© 2011 Third Rail Games


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