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Prime number and Square number
A prime number is a whole number greater than 1 that has exactly two
factors, 1 and itself such as 2, 3, 5, 7, 11, 13 ….
A square number is a number that is the product of any number and itself
such as 1, 4, 9, 16 ….
1^1 = 1 2^2 = 4
3^3 = 9 4^4 = 16
Example 1 Find all the factors of numbers from 1 to 10 and write the types of
integers.
Number Factor How Types of Number Factor How Types of
1 1 many integers many integers
1 Square number 6 1, 2, 3, 6 4
2 1, 2 2 Prime number 7
38
4 1, 2, 4 3 Square number 9
5 10
4. Prime number · Square number 39
A prime number is a whole number greater than 1 that has exactly two
factors, 1 and itself such as 2, 3, 5, 7, 11, 13 ….
A square number is a number that is the product of any number and itself
such as 1, 4, 9, 16 ….
1^1 = 1 2^2 = 4
3^3 = 9 4^4 = 16
Example 1 Find all the factors of numbers from 1 to 10 and write the types of
integers.
Number Factor How Types of Number Factor How Types of
1 1 many integers many integers
1 Square number 6 1, 2, 3, 6 4
2 1, 2 2 Prime number 7
38
4 1, 2, 4 3 Square number 9
5 10
4. Prime number · Square number 39
