examples of probable primes
To give an example of a probable prime relative to a base: has passed preliminary primality tests relative to bases 2, 3, 5, 7, 11, 13 and 101. Its square root is approximately , which makes a conclusive primality test by trial division in a reasonable time period impractical.
To give an example of a probable prime by a pattern: this pattern
On the other hand, is not a probable prime, because even though it is much larger than either of the probable primes given above, it is clearly divisible by .
|Title||examples of probable primes|
|Date of creation||2013-03-22 15:53:49|
|Last modified on||2013-03-22 15:53:49|
|Last modified by||PrimeFan (13766)|