Number System · Question 13 · Hard
What is the remainder when 2^100 is divided by 7?
- 1
- 4
- 6
- 2
Answer and explanation
Answer: D. 2
Explanation: 2^3 = 8 leaves remainder 1 when divided by 7. 2^100 = (2^3)^33 × 2, so the remainder is 1 × 2 = 2.
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