Prime and Composite Numbers
Math ⇒ Number and Operations
Prime and Composite Numbers starts at 6 and continues till grade 12.
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See sample questions for grade 6
Explain why 15 is a composite number.
Explain why 2 is a prime number.
How many prime numbers are there between 1 and 10?
List all the factors of 18.
List all the prime numbers between 10 and 20.
List the first five prime numbers.
What is the definition of a composite number?
A teacher writes the following numbers on the board: 22, 33, 44, 55, 66. How many of these numbers are composite?
Which of the following is NOT a composite number?
(1) 4
(2) 6
(3) 7
(4) 8
Which of the following numbers is a composite number?
(1) 13
(2) 17
(3) 19
(4) 21
Which of the following numbers is a composite number?
(1) 23
(2) 29
(3) 35
(4) 37
Which of the following numbers is a composite number?
(1) 41
(2) 43
(3) 45
(4) 47
Fill in the blank: A prime number has exactly _______ distinct positive divisors.
Fill in the blank: The number 15 is a _______ number.
Fill in the blank: The number 2 is a _______ number.
Fill in the blank: The number 21 is a _______ number.
Is 1 considered a composite number?
Is 100 a composite number?
Is 17 a composite number?
Is 51 a prime number?
