Question 15
Find the largest integer $n$ for which $321!/10^n$ is a natural number.
HKIMO 2026 THPT (Grades 10–12 shared) National Preliminary Set 05 Question 15
HKIMO · HKIMO 2026 THPT (Grades 10–12 shared) National Preliminary Set 05
HKIMO · HKIMO 2026 THPT (Grades 10–12 shared) National Preliminary Set 05