Difference between revisions of "Manuals/calci/ISPRIME"
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==References== | ==References== | ||
+ | [http://en.wikipedia.org/wiki/Is_functions Is functions] |
Revision as of 00:11, 26 December 2013
ISPRIME(n)
- is the number
Description
- This function is one of the group in ISFUNCTIONS.
- The IS FUNCTION is also known as data information functions, data inspection functions or data-testing functions.
- ISPRIME function is used to test the given number is prime or not.
- This function gives the result as TRUE when the given value is prime otherwise this function gives th result as FALSE.
- A prime number is a natural number, it can be divided, without a remainder, only by itself and by 1.
- For e.g. The number 11 is a prime, because 11 is divided by 1 and 11 without any remainder.
- But 6 is not prime, because 6 can be divided by 1,2,3 and 6.
- Also the number 0 and 1 are neither prime nor composite.
Examples
- ISPRIME(2)=TRUE
- ISPRIME(7)=TRUE
- ISPRIME(105)=FALSE
- ISPRIME(1)=TRUE
- ISPRIME(-2)=FALSE
- ISPRIME(0)=FALSE