Target Exam

CUET

Subject

-- Applied Mathematics - Section B2

Chapter

Numbers, Quantification and Numerical Applications

Question:

$3^{500}(mod\, 7)=$

Options:

0

1

2

4

Correct Answer:

2

Explanation:

The correct answer is Option (3) → 2

Since the cycle repeats every 6 terms,

$500\,mod\,6$

thus,

$500≡2\,mod\,6$

$⇒3^{500}≡2\,mod\,7$

⇒ Remainder = 2