PutnamSuperchallengeIntegrals I: Feynman's Trick ShareIntegrals I: Feynman's Trick · Superchallenge problemHow many residues xxx with 0≤x<240 \le x < 240≤x<24 satisfy x2≡1(mod24)x^2 \equiv 1 \pmod{24}x2≡1(mod24)?Check Show answer Walk through it step by step Practice more like this Review this concept