Learning Math: Composite Numbers and Prime Numbers

Mathematics Activity :
Composite Numbers and Prime Numbers

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Which is the prime number between 90 and 100?
97

1.	7 is a prime factor of 133. What is the other prime factor?


2.	What is the difference between the greatest and the smallest prime numbers coming in between 20 and 40?


3.	What is the sum of the prime numbers coming immediately before and after 50?


4.	How many pairs of prime numbers are there to express 24 as the sum of two prime numbers?


5.	How many pairs of prime numbers are there to express 18 as the sum of two prime numbers?


6.	What is the difference between the fifth and the second prime numbers coming after 7?


7.	How many prime numbers are there from 30 to 50?