Modify Logarithmic axis

Dear co-rooters,

I have to make a plot where x-axis is in logarithmic scale.
At the moment it looks like that

What I would like to do is make an axis that will have the following “labels”

7x10^3, 8x10^3, 9x10^3, 1x10^4, 2x10^4, etc

How can I do that?

Thanks a lot in advance!



Thank you so much!!!