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How to find the sum of prime numbers below 2 million?
This code is trying to find the sum of prime numbers below 2 million. The code does work as intended, but it takes a very long time ( 6 minutes) for the code to execute completely. What is the problem and how can I make it more efficient?
Which is the sum of two consecutive primes below limit 10?
Below limit 10, 5 is sum of two consecutive primes, 2 and 3. 5 is the prime number which is sum of largest chain of consecutive below limit 10. Below limit 30, 17 is sum of four consecutive primes. 2 + 3 + 5 + 7 = 17 Recommended: Please try your approach on {IDE} first, before moving on to the solution.
Which is the maximum possible value of a limit?
The maximum possible value of a limit is 10^4. Input : arr [] = {10, 30} Output : 5, 17 Explanation : There are two limit values 10 and 30. Below limit 10, 5 is sum of two consecutive primes, 2 and 3. 5 is the prime number which is sum of largest chain of consecutive below limit 10.
Do you start with the Prime 2 in Python?
Your loop always starts with the index 2. The consecutive primes it seems don’t necessarily need to start with the prime 2. You will need to vary which prime the consecutive adding starts at. A smaller example: if you were finding the largest sum of consecutive primes with sum less than 10, then that is 3 + 5 = 8, not 2 + 3 = 5.
What’s the highest number of primes you can get?
You can create a set of primes for as high the first 10,000 primes, or a set between any number and 104,730 (to check to see if a number greater than 104,730 is prime, please visit the prime number checker ).
How do you find the prime number on primepage?
Here’s how it works: Enter a value for n below, from 1 to 10 12, inclusive. The server will return the n th prime number (counting 2 as the first). Commas and scientific notation (e.g. 1.0e12) are allowed. For example, entering either 1,000,000,000,000 or 1.0e12 will tell you ‘ The 1,000,000,000,000th prime is 29,996,224,275,833.
Is there a way to generate a list of prime numbers?
Tap the “Generate Prime List” button. This will generate a delimited list of the prime numbers matching your entries and display them in the text area field below the button.