Question

Here is a list of five numbers.

14,
15,
16,
17,
18,
From the list,

write down the prime number,
=

write down the square number.
=

Answer 1

Prime number - 17

Square number - 16

Explanation:

Ok, so a prime number is a number with no factors other than 1 and the number itself.

14 = 2 x 7

15 = 3 x 5

16 = 4 x 4

17 = 1 x 17

18 = 3 x 6

So, every number here except 17, has three or more factors,.

So, the prime number here is 17.

If you look at 16, you see that 16 = 4 x 4

A square number means that it has a whole number, which when multiplied to itself, gets you that number.

So, 16 is the required square number

Thanks