Which digital picture has the highest and best resolution? 1.87 MB or 389 KB.?

I need to know cause I am about the delete everything off my "card" and just 'trust' the pics on the CD from the store are the right 'good' quality. By my calculations, I set the camera for a very high quality for the 389KB one on my store disk and lesser for 1.87 size picture that is on my new CD disk. But 389 sounds bigger. That's why I'm confused. Thanks.

You have to include the decimal points.

It is either 1.87MB vs. 0.389MB or
1870KB vs. 389KB

go to howstuffworks.com
it may solve your problem