Tool to search for primes numbers according to criteria. A prime number is a natural number whose divisors are 1 and itself (like 2, 3, 5, 7, 11, 13, 17, 19 ...)
Prime Numbers Search - dCode
Tag(s) : Arithmetics
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Prime Numbers Search
Answers to Questions (FAQ)
How to find prime numbers?
To know if a number is prime, it is necessary to pass primality test. A test that will verify mathematically and algorithmically, that the number is divisible by none other than itself.
Example: 10 is divisible by 2 so is not prime
Example: 11 is not divisible by 2, 3, 4, 5, 6, 7, 8, 9, or 10, so it's a prime.
There is no method (other than testing all numbers) to find a list of prime numbers exhaustively and quickly.
How do I find the next or previous prime number?
Again, it has no foolproof technique to detect the next prime or the previous prime, dCode will detect the first number (upper or lower) that will be a prime number.
Source code
dCode retains ownership of the online 'Prime Numbers Search' tool source code. Except explicit open source licence (indicated CC / Creative Commons / free), any 'Prime Numbers Search' algorithm, applet or snippet (converter, solver, encryption / decryption, encoding / decoding, ciphering / deciphering, translator), or any 'Prime Numbers Search' function (calculate, convert, solve, decrypt / encrypt, decipher / cipher, decode / encode, translate) written in any informatic language (Python, Java, PHP, C#, Javascript, Matlab, etc.) and no data download, script, copy-paste, or API access for 'Prime Numbers Search' will be for free, same for offline use on PC, tablet, iPhone or Android ! dCode is free and online.
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Questions / Comments
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