Question 6 (b)
Express the following as the sum of two odd primes:
36
Here take a look at 36, it is a even number
So if we add two even numbers we can get an even number but we only have 2 as a even prime number, so this case fails
Now if we add two odd numbers we can get an even number
So possible pairs are:
5 + 31 = 36
13 + 23 = 36
19 + 17 = 36