Question 542072
I am a number less than 40. One of my factors is 7. the sum of my digits is 8. what number am I?
<pre>
Two ways to figure out what number you are:

First way:
The numbers less that 40 which have sum of digits 8 are 17, 26, 35.
Only one of those that has a factor of 7.  And that is 35.  
So you are 35.

Second way:
The numbers less that 40 which have a factor of 7 are 7,14,21,28,35
Only one of those which has sum of digits as 8.  And that is 35.
So you are 35.

Edwin</pre>