Editing Heegner number (section)

==Consecutive primes==
Given an odd prime&nbsp;''p'', if one computes <math>k^2 \mod p</math> for <math>\textstyle k=0,1,\dots,\frac{p-1}{2}</math> (this is sufficient because <math>\left(p-k\right)^2\equiv k^2\mod p</math>), one gets consecutive composites, followed by consecutive primes, if and only if ''p'' is a Heegner number.<ref>{{Cite web|url=http://www.mathpages.com/home/kmath263.htm|title=Simple Complex Quadratic Fields}}</ref>

For details, see "Quadratic Polynomials Producing Consecutive Distinct Primes and Class Groups of Complex Quadratic Fields" by [[Richard Mollin]].<ref>{{cite journal|author=Mollin, R. A.|title=Quadratic polynomials producing consecutive, distinct primes and class groups of complex quadratic fields|journal=Acta Arithmetica|volume=74|year=1996|pages=17–30|doi=10.4064/aa-74-1-17-30|url=http://matwbn.icm.edu.pl/ksiazki/aa/aa74/aa7412.pdf}}</ref>