Manuals/calci/ITHPRIME

ITHPRIME(i, n)

where,

• $i$ is any real number
• $n$ is the maximum limit

ITHPRIME() calculates the 'ith' prime number less than a maximum value 'n'.

Description

ITHPRIME(i, n)

For Example,

ITHPRIME(4,25) returns 7 as a result.

• ITHPRIME() calculates the $i$th prime number from the Prime Number Series (2,3,5,7,11,13,17..........) and displays as an output, if it is less than $n$.
• $i$ and $n$ should be real numbers, else Calci displays #NULL error message.
• $n$ should be > 2.
• If $n$ is less than the $i$th prime number value, Calci displays #NULL error message.

Examples

Consider the following example in Calci, that shows the use of ITHPRIME function:

3	6
6	30

=ITHPRIME(A1,A2): Calculates the 3rd prime number in the series, checks if it is < 6. Displays 5 as a result.
=ITHPRIME(B1,B2): Calculates the 6th prime number in the series, checks if it is < 30. Displays 13 as a result.

See Also

• ISPRIME

References

• Prime Number