Fun math games factors

How many different shaped boxes can you design for 36 sweets in one layer? Can you arrange the sweets so that no sweets of the same colour are next to each other in any direction? This is a game for two players. The first player chooses a positive even number that is less than 50, and crosses it out on the grid. The second player chooses a number to cross out. The number must be a factor or multiple of the first number. Players continue to take it in turns to cross out numbers, at each stage choosing a number that is a factor or multiple of the number just crossed out by the other player.

The first person who is unable to cross out a number loses. Here is an interactive version of the game in which you drag the numbers from the left hand grid and drop them on the right hand grid. Alternatively, click on a number in the left hand grid and it will transport to the earliest empty location in the right hand grid. You can rearrange the numbers in the right hand grid by dragging and dropping them in position. Log out. Log in.

View Cart. Join Now. NCTM Store. Toggle navigation MENU. Log In Not a member? Factor Game Grade: 3rd to 5th, 6th to 8th This interactive is optimized for your desktop and tablet. Instructions Player 1 chooses a number on the game board by clicking on it. Exploration Questions for Students Which number has the most factors?

Which numbers should you avoid and why? Free workheets for prime factorization Generate free, printable worksheets for prime factorization or for finding all the factors of a given number. Customize the worksheets in various ways difficulty level, spacing, font size, number of problems.

Product game For two players; each selects a factor, computer colors the product - who gets four in row wins. Prime Numbers as Building Blocks - Euclid's greatest discovery A short video about the fundamental theorem of arithmetic: that each composite number has a unique prime factorization. Prime Number Calculator This calculator tests if a number is a prime, and tells you its smallest divisor if it is not prime.

Fruit Shoot - Greatest Common Factor Shoot the fruit that has the greatest common factor of two given numbers. Three levels and two different speeds. Fruit Shoot - Least Common Multiple Shoot the fruit that has the least common multiple of two given numbers. First, you find the prime factorization of two different numbers, using the factor tree. Once that is done, the activity shows you a Venn diagram. Customize the worksheets in various ways choose number range, font size, etc.

Least common multiple tutorial An animated tutorial and exercises for the Least common multiple from e-learning for Kids. Greatest Common Factor - That Quiz question quiz, not timed, difficulty level 5 medium.

You can also change the parameters to your liking.