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True or False: If p1, p2, . . . , pn are prime, then A = p1p2 . . . pn1 + 1 is also prime.

1 Answer

3 votes

Answer:

The given statement is FALSE.

Explanation:

If p1, p2, . . . , pn are prime, then A = p1p2 . . . pn1 + 1 is also prime.

No, this statement is false.

Let's take an example:

We take two prime numbers.

p1 = 3

p2 = 5

Now p1p2+1 becomes :


(3*5)+1=16

And we know that 16 is not a prime number.

Note : A prime number is a number that is only divisible by 1 and itself like 3,5,7,11 etc.

User Justin Joseph
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