PrevPrime

Returns the greatest prime number less than a given integer.

Syntax

• PrevPrime(n)

  • n is an integer

Description

If n is an integer greater than 2, then PrevPrime(n) is the greatest prime number less than or equal to n − 1.

Examples

PrevPrime(7355242453)

7355242451

See also

• prime

• IsPrime

• PrevPrime