See also the Dr. Math FAQ: 0.9999 = 1 0 to 0 power n to 0 power
0! = 1 dividing by 0 Browse High School Number Theory Stars
indicate particularly interesting answers or good places to
begin browsing. Selected answers to common questions: Infinite
number of primes? Testing for primality. What is 'mod'? -
Finding Perfect Cube Factors of 10! [04/12/2005] To find all
perfect cubes that are factors of 10!, you don't need to
actually evaluate 10!. - Finding Pi [11/14/1997] What is the
quickest algorithm for finding pi? - Finding Prime Factors of
Factorials [11/26/2004] How many factors of 2 are contained in
100! ? - Finding Prime Numbers [11/10/1997] What is the fastest
way to determine if a number is prime? - Finding Products of a
Range of Numbers [03/28/2002] What method or formula is there to
solve for the product of a range of - Finding Pythagorean
Triplets [02/02/2006] Without using the standard a = n^2 - m^2,
b = 2nm, c = n^2 + m^2, how can you work out Pythagorean
triplets? For example, how could you find tr