Question 13
Find the remainder when $98^{100}$ is divided by 20.
HKIMO 2026 THPT (Grades 10–12 shared) National Preliminary Set 03 Question 13
HKIMO · HKIMO 2026 THPT (Grades 10–12 shared) National Preliminary Set 03
HKIMO · HKIMO 2026 THPT (Grades 10–12 shared) National Preliminary Set 03