prime and composite

Front

What are composite & prime numbers?

Back

A prime number is a whole number that only has two factors which are itself and one. A composite number has factors in addition to one and itself. The numbers 0 and 1 are neither prime nor composite. All even numbers are divisible by two and so all even numbers greater than two are composite numbers.

Front

Prime numbers have:

Back

Exactly 2 factors

Front

Composite numbers

Back

Have more than 2 factors

Front

Find the prime number: 10, 9, 7, 4

Back

7

Front

Which number is composite? Options: 11, 13, 21, 23

Back

21

Front

Which number is NOT a factor of 10? Options: 1, 2, 3, 5

Back

3

Front

True or False: 2 is a COMPOSITE number.

Back

FALSE

Front

Which number is NOT a factor of 18? Options: 2, 3, 5, 9

Back

5

Front

Which number listed below is a prime number? Options: 1, 37, 63, 33

Back

37

Front

Which of the following is a factor of 54? Options: 4, 7, 5, 9

Back

9