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

Find all the factors of a number.

Every natural number has a concrete number of factors, only the number 0 has an infinite number of factors.

  Esta unidad interactiva requiere la máquina virtual de Java J2RE.

Find the factors of the number shown and type them - one by one - in the control box below.

Every time you type a factor you have to hit Enter.
When you have typed all the factors without any mistakes, the message CONGRATULATIONS will appear.

Every time you click on Init, another random number of two digits will appear.

  Eduardo Barbero Corral
Spanish Ministry of Education. Year 2007

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