jillfernandez37 jillfernandez37
  • 01-09-2017
  • Mathematics
contestada

if x is a prime number, then x+1 is not a prime number. A counterexample is x=

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smoshgirl854
smoshgirl854 smoshgirl854
  • 01-09-2017
3 is what I think the answer would be. 3 + 1 is 4, 4 is not a prime number, 3 is prime.
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ColinJacobus ColinJacobus
  • 28-08-2019

Answer:  The required example is x = 5.

Step-by-step explanation:  Given that if x is a prime nu mber, then x+1 is not a prime number.

We are to give a counterexample for this.

Let us consider that

[tex]x=5.[/tex]

Then, we know that x is a prime number.

But, we get

[tex]x+1=5+1=6,[/tex] which is not a prime number.

Thus, the required example is x = 5.

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