Learning Math: Composite Numbers and Prime Numbers

Mathematics Activity :
Composite Numbers and Prime Numbers

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What is the difference between the fifth and the second prime numbers coming after 7?
10

1.	What is the sum of the prime numbers coming immediately before and after 71?


2.	What is the smallest composite number?


3.	How many composite numbers are there from 61 to 79?


4.	Two prime numbers whose difference is 2 are called twin prime numbers, e.g., 3 and 5. How many twin prime numbers are there between 50 and 100?


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


6.	How many even prime numbers between 1 and 50?


7.	Which is the prime number between 90 and 100?