ReadKey true ; Console. Either of the two static methods can be called and tested with the using statements and with the static Main method as follows: It is also quite slow due to the multiple nested enumeration operations.

The above code works because it limits the computation to only the odd numbers and only does modulo divisions up to the square root of the current number being tested. If he had tried a smaller range such as one million, he still would have found it takes in the range of seconds as implemented.

It can become an optimized Trial Division with less enumeration overhead as follows: However, it is still slow and memory intensive due to the List generation and the multiple enumerations as well as the multiple divide implied by the modulo operations.

WriteLine "This program generates prime sequences. The following true Sieve of Eratosthenes implementation runs about 30 times faster and takes much less memory as it only uses a one bit representation per number sieved and limits its enumeration to the final iterator sequence output, as well having the optimisations of only treating odd composites, and only culling from the squares of the base primes for base primes up to the square root of the maximum number, as follows: That is why only a page segmented approach such as that of PrimeSieve can handle this sort of problem for the range as specified at all, and even that requires a very long time, as in weeks to years unless one has access to a super computer with hundreds of thousands of cores.

Even if this were corrected, the question code produces very slow output because it gets bound up doing bit divisions of very large quantities of composite numbers all the even numbers plus the odd composites by the whole range of numbers up to that top number of ten raised to the sixteenth power for each prime that it can possibly produce.

This takes an hour or so to display the primes up to a billion, so one can imagine the amount of time it would take to show all the primes to ten thousand trillion 10 raised to the sixteenth powerespecially as the calculation gets slower with increasing range.The number which is only divisible by itself and 1 is known as prime number.

For example 2, 3, 5, 7 are prime numbers. Here we will see two programs: 1) First program will print the prime numbers between 1 and 2) Second program takes the value of n (entered by user) and prints the prime numbers between 1 and n.

This C# Program Displays All the Prime Numbers Between 1 to Here prime number is a natural number greater than 1 that has no positive divisors other than 1 and itself.

Here is source code of the C# Program to Display All the Prime Numbers Between 1 to C Program to find Sum of Prime Numbers from 1 to N Instead of adding prime numbers from 1 toyou can allow user to decide the minimum and maximum values.

This program allows the user to enter Minimum and Maximum values. Write a C, C++ program to print prime numbers between 1 to In this tutorial, we are going to write a C, C++ code to print prime numbers between 1 to If the loop terminates because of break statement inside the if statement, the entered number is a nonprime number.

The value of flag is 1 in this case. Visit this page to learn, how you can display all prime numbers between two intervals entered by the user.

Write a program in C to print prime numbers between 1 to N using for Loop. Wap in C to print all prime numbers between 1 to For loop in C; A Prime number is a natural number greater than 1 that is only divisible by either 1 or itself.

DownloadWrite a program in c to find prime numbers from 1 to 100

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