Sarkari RiseLogin
CDS 2022 · PYQ · Number System · medium

4^61 + 4^62 + 4^63 + 4^64 is divisible by

Answer

The correct answer is B: 17. 4^61(1+4+16+64) = 4^61 × 85 = 4^61 × 5 × 17. So divisible by 17.

  1. A.11
  2. B.17✓ Correct
  3. C.9
  4. D.7

Explanation

4^61(1+4+16+64) = 4^61 × 85 = 4^61 × 5 × 17. So divisible by 17.
💡 Practice unlimited CDS PYQs + AI-tracked progress on each topic. Sign up free →

More Number System questions

Want more CDS practice?

Free daily 10-Q quiz · adaptive mocks · 49,000+ practice questions (19,000+ verified PYQs) · AI doubt solver in Hindi + English

Sign up freeMore Number System practice