Initialize a variable ctr = 0 to count the number of factors.Start a for loop from i = 2 to i = 100, which will set each number.To prove this let’s presume a factor of i as j such that j>i then there must be another factor i/j which will be smaller than i since both the factors can’t be greater than i, therefore, if there are no factors of i less than i then the number doesn’t have any other factor. Note: The loop will run till i and not till i because if a number has no factors till i then it won’t have any factor. Inside it, we will use another for loop from 2 to i to check for factors. We will use a for loop from 2 to 100 to set the number to be checked. To print all the prime numbers between 1 and 100 we would have to start from 2 (since 1 is neither prime nor composite) and then check for each number’s factors. One is considered neither prime nor composite. Rest of the numbers are called composite numbers. In the given question, we have to find and print all prime numbers between 1 and 100.Īny number is called a prime number if it has no factors other than one and the number itself. Next Smaller Element to Left in an array.

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