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MEAP Preparation - Grade 5 Mathematics
1.26 Prime and Composite Facts for Numbers 1 through 20
Prime Numbers :
The numbers larger than 1 and having exactly two factors.
1 and the number itself are called prime numbers
Example: 2, 3, 19, 17........
Composite Numbers :
The numbers having more than two factors are called composite numbers.
Example: 4, 6, 112, 150 ..........
Directions:
Review the following table and answer the questions. Also write atleast 10 examples of your own for prime and composite numbers.
Q 1
: How many even prime numbers are there?
3
many
2
1
Q 2
: 7 is a _______ number.
even
composite
prime
Q 3
: Which of these is a composite number?
3
5
2
4
Q 4
: Which of the following numbers is neither prime nor composite?
3
1
2
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