SOLUTION: Find a counterexample to the statment: The square of a number aded to the sum of three times the number and 7 is a prime number.

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Question 319253: Find a counterexample to the statment: The square of a number aded to the sum of three times the number and 7 is a prime number.
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Let N be your number.
P=N%5E2%2B3N%2B7
Let N=3,
P=9%2B9%2B7=25
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25 is not a prime number, 5*5=25.