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Find prime numbers

Easy
0/40
Average time to solve is 15m
42 upvotes
Asked in companies
OracleInfosysSiemens

Problem statement

You are given a positive integer ‘N’. Your task is to print all prime numbers less than or equal to N.

Note: A prime number is a natural number that is divisible only by 1 and itself. Example - 2, 3, 17, etc.

You can assume that the value of N will always be greater than 1. So, the answer will always exist.

Detailed explanation ( Input/output format, Notes, Images )
Constraints:
2 <= N <= 10^7

Where ‘N’ is the given positive integer.

Time Limit: 1sec
Sample Input 1 :
7
Sample Output 1 :
2 3 5 7

Sample Output 1 Explanation:

For the given input, all prime numbers from 2 to 7 are 2, 3, 5 and 7.
Sample Input 2 :
30
Sample Output 2 :
2 3 5 7 11 13 17 19 23 29
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