Question 768183
Find the least whole number which can be expressed as
 the sum of 2 consecutive whole numbers,
<pre>
0+1 = 1
</pre>
AND ALSO
 the sum of 3 consecutive whole numbers, 
<pre>
0+1+2 = 3
</pre>
AND ALSO
 the sum of 5 consecutive whole numbers.
<pre>
0+1+2+3+4 = 10

Edwin</pre>