TCS
Company
Numerical Ability
Number System
N is an integer and N>2, at most how many integers among N + 2, N + 3, N + 4, N + 5, N + 6, and N + 7 are prime integers?
Read Solution (Total 9)
-
- ans 2 numbers, it is because when we consider if we consider any even no. then then n+2,n+4,n+6 will also be even ,and n+3,n+5,n+7 cases are possible but there are no any three prime number in continuance above 2 so the only two prime numbers are possible . Similar case when n is odd.
- 9 years agoHelpfull: Yes(5) No(2)
- as given N>2,so let us suppose N=3.
putting the value of N=2 in the given sequence we get...
5,6,7,8,9,10 .so in this sequence we are having only 5 and 7 are prime so their are only 2 such number which are prime.
we can also check this sequence by taking N=4 also and so on... - 9 years agoHelpfull: Yes(1) No(0)
- ans 2 number.
- 9 years agoHelpfull: Yes(0) No(0)
- 2 numbers
- 9 years agoHelpfull: Yes(0) No(0)
- 2,go on submitting the integer value from 3 ,4,5....
- 9 years agoHelpfull: Yes(0) No(0)
- PUT n=6 check for the values
n+5,n+7 are prime number - 9 years agoHelpfull: Yes(0) No(0)
- 2 because more than 2 number what ever the number is max 2 are prime
- 9 years agoHelpfull: Yes(0) No(0)
- for n=3, we get 5,6,7,8,9,10 2 prime numbers
- 9 years agoHelpfull: Yes(0) No(0)
- ans 2 n>2 we get 2
- 9 years agoHelpfull: Yes(0) No(0)
TCS Other Question