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
Similar Practice Questions
The set of real numbers includes which of the following ?
The set of real numbers includes which of the following ? वास्तविक संख्याओं के समूह...
Convert 0.363636 into a fraction.
Convert 0.363636 into a fraction. 0.363636 को भिन्न में बदलें।
How many two-digit numbers are divisible by 6?
How many two-digit numbers are divisible by 6? दो अंको की कितनी संख्याएँ 6 से...
\(\sqrt{(20+\sqrt{((22 +\sqrt{(2 +\sqrt{(40 + \sqrt{(81)}\big)}\bigg)}\Bigg)}\Bigg)}\)
\(\sqrt{(20+\sqrt{((22 +\sqrt{(2 +\sqrt{(40 + \sqrt{(81)}\big)}\bigg)}\Bigg)}\Bigg)}\)
Find the largest number which divides 436, 530, 624 and 718,
Find the largest number which divides 436, 530, 624 and 718, leaving 13 as the...
The mean (rounded off to two decimal place)
The mean (rounded off to two decimal place) of the first 6 odd prime numbers...
The average of first 120 odd natural numbers, is:
The average of first 120 odd natural numbers, is: प्रथम 120 विषम प्राकृत संख्याओं का...