Maths- Playing with Numbers

a prime number ✘ a composite number ✘ neither prime nor composite ✘ an even number. ✔

1 ✘ 2 ✘ 3 ✘ 4 ✔

1 ✘ 2 ✘ 3 ✘ 4 ✔

2 ✘ 5 ✘ 3 ✘ 7 ✔

7 ✘ 5 ✘ 3 ✘ 2 ✔

21 ✘ 12 ✘ 17 ✘ 39 ✔

19 ✘ 23 ✘ 6 ✘ 29 ✔

The product of two even numbers is always even. ✘ The sum of three odd numbers is even. ✘ All prime numbers are odd. ✘ Prime numbers do not have any factors. ✔

All even numbers are composite numbers. ✘ If an even number is divided by 2, the quotient may be odd or even. ✘ The sum of two odd numbers and one even number is even. ✘ Sum of two prime numbers is not always even. ✔

2 ✘ 3 ✘ 5 ✘ 10 ✔