Multiplying images

[GloriaGlitter]

Hi there - I'm a novice user of Gimp so apologies in advance if this is a really simple question.

I have an AO image size of 1024 x 1024.

The image layer that I want to add is only 512 x 512.

I do not want to resize this to 1024 x 1024 as the pattern will be too large.

So what I would like to do is to take the 512 image and make 3 copies and make a 2x2 matrix so that my image is now 1024 x 1024.

I have been doing this in Paint but it is very much hit and miss to get the images to align properly.

Is there a way I can do this in Gimp?

Thanks