Which of the following number is divisible by 24 ?  Choose the correct choice from the following answers:
A) 31214 B) 61212 C) 512216 D) 3125832 E) None of these
Explanation :   24 = 3 × 8 where 3 and 8 are co-prime numbers. 3 and 8 are also factors of 24. Hence   Hence if a number is divisible by 3, and 8, the number will be divisible by their product 24 also.   If a number is not divisible by 3 or 8, it is not divisible by 24   You must learn Divisibility Rules to say whether a given number is divisible by another number   without actually performing the division.   31214 is not divisible by 3 and 8 =&gt; 31214 is not divisible 24   61212 is not divisible by 8 though it is divisible by 3 =&gt; 61212 is not divisible 24   512216 is not divisible by 3 though it is divisible by 8 =&gt; 512216 is not divisible 24   3125832 is divisible by 3 and 8 =&gt; 3125832 is divisible 24. Answer : Option 3125832
<result>D</result>
Which of the following number is divisible by 24 ?