Explanation:
because if p is 21 a odd number and q 0 an even number then the answer i not a prime number as 21+0=21 and 21 can be divide by 3
Answer:
Dis-Proof By Counter Example - Finding a case where this isn't true
Let P = 5
Let Q = 4
5 + 4 = 9
9 isn't prime because it's divisible by 3.
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