Mathematics: Applications & Concepts, Course 2
Mathematics: Applications & Concepts, Course 2 Glencoe Online
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Group Activity Cards

Patterns
and Functions

Use groups of 2.
Materials: Clock or watch


Emirp Search

You know that a prime number is a whole number greater than 1 that has exactly two factors--itself and 1. An emirp ("prime" spelled backwards) is a prime number that turns into another prime number when the digits are reversed. For example, 13 and 31 are emirps.

Agree with your partner on a time limit such as 5 or 10 minutes. Which partner can find the most emirps in the allotted amount of time?

 

 
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Mathematics: Applications & Concepts, Course 2
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