Releted to question prime choice

#1

sir some of my test cases are not working plz see where is problem occuring.
my code https://ide.codingblocks.com/s/287502 question link https://hack.codingblocks.com/app/practice/3/1039/problem

#2

hi @avverma11057 use sieve of eratosthenes to efficiently find the prime numbers

#3

i dont able to ubderstand what u are asking to use plz explain it properly.

#4

Please refer to this

#5

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