Robert William Hanks
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 Sep24 awarded Autobiographer Aug27 awarded Necromancer Dec7 awarded Nice Question Oct8 answered What the rest of the division $1^6+2^6+…+100^6$ by $7$? Sep29 accepted Infinitely many squares in a sequence. Sep29 comment Infinitely many squares in a sequence. @ Don Larynx : thanks. Sep29 asked Infinitely many squares in a sequence. Sep15 awarded Popular Question Dec6 accepted how to find the volume of this solid of revolution? Dec6 asked how to find the volume of this solid of revolution? Aug19 awarded Yearling Sep29 comment Fastest prime generating algorithm less complexity only means that given a large enough n one algorithm will perform better than the other, but that do not mean that for a small n as 10^9 that will always be the case. Sep22 comment Is it possible $n(n+1)(n+2)…(n+k)$ is a square? ops my fact is wrong..sorry Sep22 comment Is it possible $n(n+1)(n+2)…(n+k)$ is a square? cant you just use bertrand postulate an the fact that the largest prime less than n+k divides the product? Sep19 comment Prove that $2x^2 - 3xy + 2y^2 \geq 0$ Just compute the discriminant of $ax^2 + bx + c=0$ with $a=2,b=-3y,c=2y^2$ Sep19 comment Prove that $2x^2 - 3xy + 2y^2 \geq 0$ You don't really need to factor anything, just compute the discriminant of $ax^2 + bx + c=0$ with $a=2,b=-3y,c=2y^2$ Sep14 revised What is $\sqrt{i}$? added 7 characters in body Sep13 revised What is $\sqrt{i}$? added 10 characters in body Sep13 answered What is $\sqrt{i}$? Sep12 revised Prove that for all $n\in\mathbb{N}, (n−1)^3+ n^3 \neq (n+1)^3$ deleted 13 characters in body