Which of the following numbers divides 81,42,42,541?
Which of the following numbers divides 81,42,42,541?
निम्नलिखित में से कौन-सी संख्या 81,42,42,541 को विभाजित करती है?
Detailed Solution & Logic
Correct Answer:
7
Check divisibility:
1. 8
Last three digits = 541
👉 541 is not divisible by 8 ❌
2. 12
12 = 3 × 4 → must be divisible by both 3 and 4
- Last two digits = 41 → not divisible by 4 ❌
👉 Not divisible
3. 15
15 = 3 × 5 → must be divisible by both 3 and 5
- Last digit ≠ 0 or 5 → ❌
👉 Not divisible
4. 7
On division:
$ 814242541 \div 7 = 116320363 $ (exact integer) ✅
Final Answer: 7
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