Crux Mathematicorum
Vol. 47, No. 10
December, 2021
PageContents
474 Editorial — Kseniya Garaschuk
475 MathemAttic: No. 30
475 Problems: MA146-MA150
478 Solutions: MA121-MA125
481 Explorations in Indigenous Mathematics: No. 2 — Edward Doolittle
487 Teaching Problems No. 1 — John McLoughlin
491 Olympiad Corner: No. 398
491 Problems: OC556-OC560
494 Solutions: OC531-OC535
499 Equations involving positive divisors of a given integer (II) — Salem Malikić
508 Problems: 4691-4700
512 Solutions: 4641-4650, 4409