what is a Gaussian prime?

1 ⤊

which of the following primes are Gaussian primes?
2, 3, 5, 7, 11, 13, 17, 19

2007-03-20 20:49:42 · 2 answers · asked by JizZ E. Jizzy 2 in Science & Mathematics ➔ Mathematics

3, 7, 11, 19. Rational primes which are congruent to 3 (mod 4) are Gaussian primes; those which are congruent to 1 (mod 4) are not.

2007-03-20 21:00:19 · answer #1 · answered by buraktn 2 · 1⤊ 0⤋

Read and learn:

http://en.wikipedia.org/wiki/Gaussian_prime_number

Hope this helps!

2007-03-20 21:01:53 · answer #2 · answered by p37ry 5 · 0⤊ 0⤋