Quantitative Aptitude • Number System & SimplificationMedium
What is the unit digit of 3^26?
A. 7
B. 9✓ Correct Answer
C. 1
D. 3
💡 Solution & Explanation
The unit digits of powers of 3 repeat in a cycle of 4: 3, 9, 7, 1. Divide the power by 4: 26 ÷ 4 leaves a remainder of 2, which means position 2 in the cycle. So the unit digit of 3^26 is 9. Only the last digit of the base matters for this pattern.
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