If N, (N + 2) and (N + 4) are prime numbers, then the number of possible solutions for N are


A) 1

B) 2

C) 3

D) None of these

Correct Answer:
A) 1

Description for Correct answer:

When N is a natural number, then there is only one possible case that N, (N + 2),

(N + 4) are prime numbers,

When N = 3, then N, (N + 2), (N + 4) = 3, 5,

7 all are primes.


Part of solved Number System questions and answers : >> Aptitude >> Number System








Comments

If n is not described as a natural number then there is one more set possible -3,-1,1
- parag,jain

Hello sir, 1 is not a prime number so how u can say option a)1 is correct? If we take N=3 then it make more legitmate answer.
- Sarforaj,Shaikh





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