Answer to the question ,How to not show k in measure in Power BI (simplest way to do so)

If you wish to show all the numbers of a measure in card visual in Power BI without K or M

do the following-

Step 1- Select the card 
Step 2- Go to style 
Step 3- in style "don't select General" click on "Visual"
Step 4- Expand "call out value"
Step5-In display units drop down select "none"