Past Paper
Cayley Mathematical Olympiad 2026
Open the paper overview, browse all 6 questions, or start the full paper in timed or untimed mode.
2h6 questionsCompetition style
Start this paper
Guests can browse every question first. Sign in when you want to run the full paper and save progress.
Questions in this paper
Browse the paper question by question. This is the best low-friction entry point for guests and for targeted revision.
CAYLEY-2026-001
Cayley 2026 — Money transfers (Cayley, Hamilton, Maclaurin)
CAYLEY-2026-002
Cayley 2026 — Digits in a 3×3 grid (multiples of 4)
CAYLEY-2026-003
Cayley 2026 — Rhombus and parallelogram (prove rectangle)
CAYLEY-2026-004
Cayley 2026 — Triangle DEF is isosceles
CAYLEY-2026-005
Cayley 2026 — Clock rearrangement (differences 3, 4 or 5)
CAYLEY-2026-006
Cayley 2026 — Distinct primes (p − 5)(q − 21)(r − 26) = pqr