3 years ago

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

Mathematics

2 answers:

Finger [1]3 years ago

7 0

Answer:

A counterexample is x = 3

Step-by-step explanation:

We are given that x is a prime number, and x + 1 is not a prime number. However consider the number 3. We know that 3 is a prime number, as it is present as factors of 1 and itself. However 3 + 1 = 4 - which falls into the category of a composite number, as it can divide into 2 * 2. <u>Therefore your counterexample could be x = 3.</u>

svlad2 [7]3 years ago

3 0

Answer:

x=2

Step-by-step explanation:

x=2

x+1=3

and 3 is a prime

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