Question 1183176
<br>
Since the 6 and 7 differ by 1, the smallest number divisible by both 6 and 7 is the product of the two numbers, 6*7=42.<br>
Then all the numbers divisible by both 6 and 7 are multiples of 42.<br>
There is only one other 2-digit number that is a multiple of 42: 84.<br>
And 84 is divisible by 4....<br>
ANSWER: 84<br>