Question 117741
Which of the numbers 18, 48, 452, 486 and 844 are divisible by 4? 
Please help. My mind is NOT working today..lol Thank you so much.

To be divisible by 4,
 
1. First, the last digit must be even, 0 being considered even.
   If that condition is met, then

2. If the last digit is 0, 4, or 8, the next to last digit must 
   be even, 0 being considered even.

3. If the last digit is 2 or 6, the next to last digit must be odd.

4. It doesn't matter what the other digits are.

18 is not divisible by 4 because of #2

48 is divisible by 4 because of #2

452 is divisible by 4 because of #3

486 is not divisible by 4 because of #3 

844 is divisible by 4 because of #2

Edwin</pre>