Eratosthenes and the Globe

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The Sieve of Eratosthenes

Quiz

1. Calculate the circumference of the pizza.
 
Correct Answers :

2. Use Eratosthenes’ method to find which number below is NOT a prime. (Hint: Look at the diagram above.)


  
 
 
 
1) 11   2) 31   3) 57   4) 67   5) 89
Correct Answers :
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