Multiples and factors. Prime numbers
First and Second Year of Secondary Education

A game with multiples and factors.
Esta unidad interactiva requiere la máquina virtual de Java J2RE. Game rules:

- This is a competition game between two players.

- In turns, each player takes a number out of the window.
The numbers taken out cannot be put back.

- The number taken out has to be a multiple or factor of the number taken before and shown in the box.

- The player that takes out a wrong number or cannot take out a number loses.

- In order not to give the first player an advantage, the first number taken out must be an even number.

  Eduardo Barbero Corral
Spanish Ministry of Education. Year 2007

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