What is the remainder when 7^10 is divided by 5?
✓ Correct Answer: Option D
The pattern of remainders when powers of 7 are divided by 5 is: 7^1≡2, 7^2≡4, 7^3≡3, 7^4≡1. The pattern repeats every 4 powers. Since 10 divided by 4 has a remainder of 2, 7^10 has the same remainder as 7^2, which is 4.