If x is an integer and 2.134 × 10^x is less than 21000, what is the greatest possible value for x?
Choose the correct choice from the following:
A) 7 B) 6 C) 5 D) 4 E) 3
If x=4   2.134 × 10^4 = 21340 &gt; 21000   So, x = 3   Answer : 3
<result>E</result>
If x is an integer and 2.134 × 10^x is less than 21000, what is the greatest possible value for x?