SOLUTION: if x and y are prime numbers then which one of the following cannot equal x-y? A. 1 B. 2 C. 13 D. 14 E. 20

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Question 1032993: if x and y are prime numbers then which one of the following cannot equal x-y?
A. 1
B. 2
C. 13
D. 14
E. 20
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
if x and y are prime numbers then which one of the following cannot equal x-y?
A. 1
B. 2
C. 13
D. 14
E. 20
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13
Do you know why?